A Discourse on The Full-Moon Night

On a full moon night with the Sangha at Sāvatthi, the Buddha answers a series of ten questions on the aggregates.

At one time, the Blessed One was residing in Sāvatthī, in the Eastern Park, in Migāra's mother's mansion, with a large assembly of bhikkhus. On that occasion, the Blessed One was sitting in the open air, surrounded by the bhikkhu assembly, on the full moon night of the Uposatha (observance day) of the fifteenth.

Then, a certain bhikkhu rose from his seat, arranged his upper robe over one shoulder, raised his joined palms towards the Blessed One, and said:

"Venerable sir, I would ask the Blessed One about a certain matter, if the Blessed One would grant me the opportunity for my question to be answered?"

"Then, bhikkhu, sit down on your own seat and ask whatever you wish."

"Very well, venerable sir," the bhikkhu replied, having assented to the Blessed One’s response. He sat down on his own seat and asked the Blessed One:

"Are these, venerable sir, the five aggregates subject to clinging, namely: form aggregate subject to clinging, feeling aggregate subject to clinging, perception aggregate subject to clinging, volitional formations aggregate subject to clinging, and consciousness aggregate subject to clinging?"

"These, bhikkhu, are indeed the five aggregates subject to clinging; namely: form aggregate subject to clinging, feeling aggregate subject to clinging, perception aggregate subject to clinging, volitional formations aggregate subject to clinging, and consciousness aggregate subject to clinging."

"Excellent, venerable sir," the bhikkhu, pleased and appreciative of what the Blessed One had said, asked another question:

"What, venerable sir, is the root of these five aggregates subject to clinging?"

"Bhikkhus, these five aggregates subject to clinging have desire as their root".

"Venerable sir, is that very clinging the same as these five aggregates subject to clinging, or is it something apart from the five aggregates subject to clinging?"

"Bhikkhu, that very clinging is neither the same as these five aggregates subject to clinging nor is it something apart from the five aggregates subject to clinging; but whatever desire and lust is therein, that is the clinging therein."

"Excellent, venerable sir," the bhikkhu asked further:

"Is it possible, venerable sir, for there to be moderation in desire and lust within these five aggregates subject to clinging?"

"It is possible, bhikkhu," the Blessed One said:

"Here, bhikkhu, someone thinks: 'May I be of such form in the future, may I have such feeling in the future, may I have such perception in the future, may I have such volitional formations in the future, may I have such consciousness in the future.' Thus, bhikkhu, there can be moderation in desire and lust within these five aggregates subject to clinging."

"Excellent, venerable sir," the bhikkhu asked further:

"How far, venerable sir, does the term 'aggregates' apply?"

"Whatever form, bhikkhu, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all that is called the form aggregate. Whatever feeling, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all that is called the feeling aggregate. Whatever perception, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all that is called the perception aggregate. Whatever volitional formations, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all that is called the volitional formations aggregate. Whatever consciousness, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all that is called the consciousness aggregate. Thus far, bhikkhu, the term 'aggregates' applies."

"Excellent, venerable sir," the bhikkhu asked further:

"What, venerable sir, is the cause, what is the condition for the manifestation of the form aggregate; what is the cause, what is the condition for the manifestation of the feeling aggregate; what is the cause, what is the condition for the manifestation of the perception aggregate; what is the cause, what is the condition for the manifestation of the volitional formations aggregate; what is the cause, what is the condition for the manifestation of the consciousness aggregate?"

"The four great elements, bhikkhu, are the cause, the four great elements are the condition for the manifestation of the form aggregate. Contact is the cause, contact is the condition for the manifestation of the feeling aggregate. Contact is the cause, contact is the condition for the manifestation of the perception aggregate. Contact is the cause, contact is the condition for the manifestation of the volitional formations aggregate. Name-and-form is the cause, name-and-form is the condition for the manifestation of the consciousness aggregate."

"Excellent, venerable sir," the bhikkhu asked further:

"How does self-view arise?"

"Here, bhikkhu, an untaught ordinary person, who has no regard for noble ones and is unskilled and undisciplined in their Dhamma, who has no regard for true men and is unskilled and undisciplined in their Dhamma, regards form as self, or self as possessing form, or form as in the self, or self as in form; regards feeling as self, or self as possessing feeling, or feeling as in the self, or self as in feeling; regards perception as self, or self as possessing perception, or perception as in the self, or self as in perception; regards volitional formations as self, or self as possessing volitional formations, or volitional formations as in the self, or self as in volitional formations; regards consciousness as self, or self as possessing consciousness, or consciousness as in the self, or self as in consciousness. This is how self-view arises, bhikkhu."

"Excellent, venerable sir," the bhikkhu asked further:

"How does self-view not arise?"

"Here, bhikkhu, a learned noble disciple, who has regard for noble ones and is skilled and disciplined in their Dhamma, who has regard for true men and is skilled and disciplined in their Dhamma, does not regard form as self, or self as possessing form, or form as in the self, or self as in form; does not regard feeling as self, or self as possessing feeling, or feeling as in the self, or self as in feeling; does not regard perception as self, or self as possessing perception, or perception as in the self, or self as in perception; does not regard volitional formations as self, or self as possessing volitional formations, or volitional formations as in the self, or self as in volitional formations; does not regard consciousness as self, or self as possessing consciousness, or consciousness as in the self, or self as in consciousness. This is how self-view does not arise, bhikkhu."

"What is the gratification, what is the danger, and what is the escape in the case of form; what is the gratification, what is the danger, and what is the escape in the case of feeling ... perception ... volitional formations ... consciousness?"

"The pleasure and joy that arise dependent on form, bhikkhu, that is the gratification in form. That form is impermanent, suffering, and subject to change, that is the danger in form. The removal and abandonment of desire and lust for form, that is the escape from form. The pleasure and joy that arise dependent on feeling, that is the gratification in feeling. That feeling is impermanent, suffering, and subject to change, that is the danger in feeling. The removal and abandonment of desire and lust for feeling, that is the escape from feeling. The pleasure and joy that arise dependent on perception, that is the gratification in perception. That perception is impermanent, suffering, and subject to change, that is the danger in perception. The removal and abandonment of desire and lust for perception, that is the escape from perception. The pleasure and joy that arise dependent on volitional formations, that is the gratification in volitional formations. That volitional formations are impermanent, suffering, and subject to change, that is the danger in volitional formations. The removal and abandonment of desire and lust for volitional formations, that is the escape from volitional formations. The pleasure and joy that arise dependent on consciousness, that is the gratification in consciousness. That consciousness is impermanent, suffering, and subject to change, that is the danger in consciousness. The removal and abandonment of desire and lust for consciousness, that is the escape from consciousness."

"Excellent, venerable sir," the bhikkhu, pleased and appreciative of what the Blessed One had said, asked another question:

"How, venerable sir, for one who knows and sees, in this very life, with regard to this consciousness-containing body and all external signs, is there no I-making, mine-making, and underlying tendency to conceit?"

"Whatever form, bhikkhu, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all form: 'This is not mine, this I am not, this is not my self,' thus, it is seen as it really is with right wisdom. Whatever feeling, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all feeling: 'This is not mine, this I am not, this is not my self,' thus, it is seen as it really is with right wisdom. Whatever perception, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all perception: 'This is not mine, this I am not, this is not my self,' thus, it is seen as it really is with right wisdom. Whatever volitional formations, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all volitional formations: 'This is not mine, this I am not, this is not my self,' thus, it is seen as it really is with right wisdom. Whatever consciousness, past, future, or present, internal or external, gross or subtle, inferior or superior, far or near, all consciousness: 'This is not mine, this I am not, this is not my self,' thus, it is seen as it really is with right wisdom. This is how, bhikkhu, for one who knows and sees, in this very life, with regard to this consciousness-containing body and all external signs, there is no I-making, mine-making, and underlying tendency to conceit."

At that time, it occurred to a certain bhikkhu:

"So it seems, indeed, form is not-self, feeling is not-self, perception is not-self, volitional formations are not-self, consciousness is not-self; how then do actions performed by a not-self affect oneself?"

Then, the Blessed One, knowing with his mind the thought in that bhikkhu's mind, addressed the bhikkhus:

"There is this possibility, bhikkhus, that someone, being ignorant (misapprehending true reality), under the sway of craving, might thus misinterpret the teaching: 'So it seems, indeed, form is not-self, feeling is not-self, perception is not-self, volitional formations are not-self, consciousness is not-self. How then do actions performed by a not-self affect oneself?' You should be trained in this way, bhikkhus, regarding these matters.

What do you think, bhikkhus, is form permanent or impermanent?"

"Impermanent, venerable sir."

"Is feeling ... perception ... volitional formations ... consciousness permanent or impermanent?"

"Impermanent, venerable sir."

"And is what is impermanent suffering or happiness?"

"Suffering, venerable sir."

"And is it fitting to regard what is impermanent, suffering, and subject to change as: 'This is mine, this I am, this is my self'?"

"It is not fitting, venerable sir."

Therefore, in this way, bhikkhus, one understands: 'This is not mine, this I am not, this is not my self' with regard to all forms, feelings, perceptions, volitional formations, and consciousness, whether past, future, or present, internal or external, gross or subtle, inferior or superior, far or near. By seeing these aggregates in this way, one becomes disenchanted with form, feeling, perception, volitional formations, and consciousness. Through disenchantment, one becomes dispassionate. Through dispassion, one is liberated. With liberation, there comes the knowledge that one is liberated, and one understands: 'Birth is exhausted, the holy life has been lived, what had to be done has been done, there is no more coming back to any state of being.'

These are the ten questions posed by the bhikkhu:

Two concern the aggregates—

Asking if they are the same or distinct,

And about designation along with cause.

Two more relate to identity,

With one each on the themes of gratification,

And the consciousness-containing body.

The Buddha taught the most on the four noble truths. This teaching shares a series of common questions he was asked on the topic. Reflecting and investigating into the five aggregates to understand them, to see their origin, passing away and cessation is how one cultivates wisdom to operate with ease in the world and in harmony in one's personal and professional relationships.

Related Teachings:

Teachings on Living Beings and the Five Aggregates - A series of teachings on what makes a living being a living being and the five aggregates.

A lump of foam (SN 22.95) - The Buddha gives a series of similes for the aggregates: physical form is like foam, feeling is like a bubble, perception is like a mirage, choices are like a coreless tree, and consciousness is like an illusion.

Section VI. Deepening One’s Perspective on the World

The introduction to "The Path to Liberation" underscores the Buddha's teachings as a nuanced guide tailored for individuals across a spectrum of beliefs and behaviors, aiming to steer them from unwholesome paths towards actions that foster pleasant outcomes, understanding of karmic rebirth, and ultimately, liberation from the cycle of birth and death. Highlighting the adaptability of the Buddha's discourses, it points out that while heavenly rebirth is recognized as a positive step, it is merely provisional, with the cessation of suffering through the attainment of Nibbāna as the ultimate goal. This unconditioned state transcends the conditioned world and is accessible in this lifetime, signifying the end of craving and the beginning of perfect peace.

To navigate followers towards Nibbāna, the Buddha emphasized the impermanence and suffering inherent in all conditioned states, advocating for a path of complete mental purification and liberation. His teachings, presented as a new way of perceiving the world, revolve around a threefold insight process: recognizing the temporary gratification provided by worldly phenomena, understanding their inherent dangers, and realizing the path to escape attachment to them. This process mirrors the Four Noble Truths, guiding followers from recognizing suffering and its origin in craving to achieving cessation of suffering through detachment, dispassion, and enlightenment, thereby setting the foundation for a journey from the lure of sensual pleasures and attachment to worldly views towards the ultimate freedom of Nibbāna.

Introduction

1. Four Wonderful Things (AN 4.128)
2. Gratification, Danger, and Escape
   1. Before My Enlightenment (AN 3.103)
   2. I Set Out Seeking (AN 3.104)
   3. If There Were No Gratification (AN 3.105)
3. Properly Appraising Objects of Attachment (MN 13)
4. The Pitfalls in Sensual Pleasures
   1. Cutting Off All Affairs (from MN 54)
   2. The Fever of Sensual Pleasures (from MN 75)
   3. Life Is Short and Fleeting (AN 7.74)
5. Four Summaries of the Dhamma (from MN 82)
6. The Danger in Views
   1. A Miscellany on Wrong View (AN1.306-308)
   2. The Blind Men and the Elephant (Ud 6.4)
   3. Held by Two Kinds of Views (Iti 49)
   4. From the Divine Realms to the Infernal (AN 4.125)
7. The Perils of Saṃsāra
   1. The Stream of Tears (SN 15.3)
   2. The Stream of Blood (SN 15.13)

This is the first section of: In the Buddha’s Words: An Anthology of Discourses from the Pali Canon by Bhikkhu Bodhi, published by Wisdom Publications, but linked to the free translations available on SuttaCentral.net.

If you've enjoyed these and would like to purchase the print or e-book versions, you can do so here: https://wisdomexperience.org/product/buddhas-words/.

“Mendicants, a farmer has three urgent duties. What three? A farmer swiftly makes sure the field is well ploughed and tilled. Next they swiftly plant seeds in season. When the time is right, they swiftly irrigate or drain the field. These are the three urgent duties of a farmer. That farmer has no special power or ability to say: ‘Let the crops germinate today! Let them flower tomorrow! Let them ripen the day after!’ But there comes a time when that farmer’s crops germinate, flower, and ripen as the seasons change.

In the same way, a mendicant has three urgent duties. What three? Undertaking the training in the higher ethics, the higher mind, and the higher wisdom. These are the three urgent duties of a mendicant. That mendicant has no special power or ability to say: ‘Let my mind be freed from defilements by not grasping today! Or tomorrow! Or the day after!’ But there comes a time—as that mendicant trains in the higher ethics, the higher mind, and the higher wisdom—that their mind is freed from defilements by not grasping.

So you should train like this: ‘We will have keen enthusiasm for undertaking the training in the higher ethics, the higher mind, and the higher wisdom.’ That’s how you should train.”

The Buddha is sharing a teaching guideline here that there is no instant enlightenment. Such thoughts are the mind operating by grasping and craving, the opposite of training per the Buddha's teaching guidelines.

Rather, one trains diligently in the training of the higher ethics (purification of mind), higher mind (concentration, jhānas, samādhi) and higher wisdom cultivation. As one does this, they're gradually freed from the defilements by not grasping.

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Related teachings:

• Gradual training, gradual practice and gradual progress
• Teachings on Living Beings and the Five Aggregates
• The characteristic of not-self

The truth of Nibbāna is fundamental to the Buddha's teachings and also what one awakens to (stream entry) as well as the end goal of the teachings (arahantship). In this post, I will share an approach for cultivating faith in this goal by making a case for the verification of Nibbāna using recent modern science.

To understand the truth of Nibbāna, I will start out with a complete presentation of the four noble truths in a way that they can be apparent in the here and now with applied reflection. After this, I will make a case for the verification of Nibbāna via modern science, and at the very least, a strong signal that should move the needle towards cultivating faith for some of us that are on the fence. And perhaps, this can serve as a springboard for some of us to dedicate more of our time to gradually learn the teachings of the Buddha and independently verify the truth for ourselves, going beyond doubt.

The Four Noble Truths

1. The truth of discontentment: The feelings of each moment to moment experience are subject to discontentment. The form, perception, volitions, consciousness (together the five aggregates) of each moment to experience are subject to discontentment.

The First Noble Truth titled, “the noble truth of discontentedness”, establishes “the problem” with the unEnlightened mind through an understanding of The Five Aggregates.

The Five Aggregates are what makes “a being, a being”. A living being will have all five aggregates, also known as “elements” or “collections”.

The Five Aggregates

Form: the physical body.

Feelings: results of experiences in the mind through The Six Sense Bases.

Perceptions: a belief or opinion based on how things seem.

Volitional Formations: choices or decisions that are made.

Consciousness: the mind.

It is when the mind “clings” or “holds on” to The Five Aggregates that the mind experiences continued discontentedness. Observing the impermanent nature of The Five Aggregates, a human being can “let go” no longer experiencing discontentedness due to “holding on” to The Five Aggregates experiencing constant rebirth in The Cycle of Rebirth.

Due to clinging to The Five Aggregates and a being coming into existence, the mind will experience discontentedness.

All unEnlightened beings will experience discontentedness.

Let's take the feelings aggregate to verify this in the here and now: painful feelings such as anger, sadness, anxiety, frustration, ill-will, jealousy, or neither-painful-nor-pleasant feelings such as shyness, boredom, loneliness, discomfort, melancholy are subject to discontentment. However, the Buddha also shares that the pleasant feelings such as excitement, happiness, elation, thrill, euphoria etc. are no exceptions and also subject to discontentment. We can perhaps see the truth of this through the understanding of these conditioned pleasant feelings lacking permanence. Do you often think about that "peak experience" in your life? There you go, that's the verification of the first noble truth for the feelings aggregate. With some more reflection, this can be seen for the other aggregates too.

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2. The truth of the cause of discontentment: It is the underlying craving for renewed existence, accompanied by desire or lust, seeking excitement here and there, that is craving for sensual pleasures, craving for existence and craving for extermination.

The second noble truth explains the underlying cause of why the mind experiences discontentedness.

It is craving/desire/attachment that causes the mind to experience discontentedness.

Craving/Desire/Attachment/Wants/Expectations/Grasping/Holding/Clinging: a mental longing for something with a strong eagerness. The mind pulling in a direction for objects of its affection.

The Buddha provides specific cravings that the unEnlightened mind will experience. It is “craving which leads to renewed existence”. Not only does craving cause discontentedness but craving is the fuel that leads to rebirth. If there is craving/desire/attachment in the mind, a being will experience rebirth.

The unEnlightened mind will seek pleasant feelings chasing after the objects of its affection. The Buddha explains this as craving that is “accompanied by excitement and desire, seeking excitement here and there; that is craving for sensual pleasures”. The unEnlightened mind will pull in the direction of the objects of its affection and if it gets what it “wants”, the mind experiences temporary pleasant feelings. If the mind does not get what it “wants”, it will experience painful feelings. Many times the mind does not know what it “wants” and will experience feelings that are neither painful-nor-pleasant.

Craving/desire/attachment keeps the mind in a continuous cycle of discontentedness never being able to find peace or be at ease because it is constantly chasing after something experiencing pleasant feelings, painful feelings, and feelings that are neither painful-nor-pleasant.

The Buddha further explains how the mind has “craving for existence” which is a mental longing with a strong eagerness to exist in the world. With the mind holding on to existence, a being will continue to experience discontentedness and discontentedness in future existences within The Cycle of Rebirth due to the craving/desire/attachment in the mind for continued existence. If there is birth, there is going to be discontentedness.

The mind also can have “craving for extermination” or death. This would be a being who is interested in death through suicide or other destructive conduct. If the mind has craving/desire to eliminate life, the mind is not in the middle and will experience discontentedness and rebirth due to this craving.

All craving/desire/attachment will produce discontentedness in the mind. There is no such thing as a wholesome craving/desire/attachment.

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3. The truth of the cessation of discontentment: There is a cessation of discontentment. It is the remainderless fading away and elimination of the same craving, the giving up and letting go of it, freedom from it, non-reliance on it.

Through training the mind to eliminate mental longing with a strong eagerness, the mind can reside peaceful, calm, serene, and content with joy because it is no longer seeking pleasant feelings through impermanent conditions and, thus, welcoming in painful feelings and feelings that are neither painful-nor-pleasant. Instead, the mind is trained to be inwardly peaceful and content or “satisfied with what is”.

The Buddha explains the elimination of discontentedness as “it is the remainderless fading away and elimination of the same craving, the giving up and letting go of it, freedom from it, non-reliance on it”.

Through training the mind to eliminate craving/desire/attachment, the mind can reside peaceful, calm, serene, and content with joy - permanently. Through training the mind to no longer chase after the objects of its affection, it can find inner peace no longer experiencing conditioned temporary feelings that are unsatisfactory. Instead, the mind can experience unconditioned mental qualities such as peacefulness, calmness, serenity, and contentedness with joy.

The inner feelings of the Enlightened mind are not based on impermanent conditions but instead, the mind is always peaceful, calm, serene, and content with joy not based on temporary conditions. This is accomplished through training the mind to eliminate craving/desire/attachment as described in this entire book series.

Through training the mind in this way, the mind can eliminate 100% of all discontent feelings.

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4. The truth of the way of cessation of discontentment: It is the noble eight fold path: namely right view, right intention, right speech, right action, right livelihood, right effort, right mindfulness, and right concentration is the way that leads to the cessation of discontentment.

This last noble truth shows the path to verify the third truth. It is The Eight Fold Path that provides the complete and perfect solution for how to actively train the mind to eliminate 100% of all discontentedness. While craving/desire/attachment is the cause of the problem and the solution to eliminate discontentedness is to eliminate all craving/desire/attachment, there is an entire path one needs to learn, reflect on, and practice to liberate the mind from discontentedness.

The Buddha explains this as “it is this Noble Eight Fold Path, that is, Right View, Right Intention, Right Speech, Right Action, Right Livelihood, Right Effort, Right Mindfulness, Right Concentration”.

The Four Noble Truths is the primary core Teaching that establishes Right View helping a Practitioner to examine the problem, cause of the problem, solution to the problem, and the path leading to the complete elimination of the problem. It is The Eight Fold Path that is the central Teaching of The Buddha with the vast majority of his Teachings integrating into The Eight Fold Path in one way or another.

It is through learning, reflecting, and practicing The Eight Fold Path that the mind is trained to be able to completely eliminate all unwholesome decisions that motivate unskillful conduct that leads to unwholesome results. Through training the mind in The Eight Fold Path, it is transformed into making only wholesome decisions that motivate skillful conduct that leads to wholesome results.

Verifying in the here and now

The first two truths can become readily apparent in the here and now or with some reflection on your experiences. However, verifying the cessation of discontentment requires building a life practice of the noble eightfold path. You can verify the 3rd truth by way of verifying the 4th truth, and this typically requires one to commit to building a life practice. Depending on how much farther our current life routine is from the Buddha's prescribed way of being in the Noble eightfold path, setting out to verify the 3rd and 4th noble truths may require a stronger faith than we currently hold -- to commit ourselves to doing the necessary work.

In this post, I'm sharing another way to verify the 3rd noble truth -- through the mode of science. The verification / demonstration is of the same quality as the one we hold in Einstein's (E = mc²) equation being true while not having to chance to verify it on our own. While science did not exist during the time of the Buddha 2500 years ago, the Buddha emphasized on the discovery of truth via a reasoned critical inquiry, vy direct observation and independent verification, in much the same way that modern science advocates for. You can read his exact words and teaching on the topic of truth over here: https://www.reddit.com/r/WordsOfTheBuddha/comments/1893o1o/canki_sutta_preservation_of_truth_awakening_to/.

The Buddha also had a clear position on what are insufficient grounds for building faith. He shares 10 conditions that one shouldn't rely on for the discovery of truth. You can read his exact words and teaching in this post: https://www.reddit.com/r/WordsOfTheBuddha/comments/18adf05/kalama_sutta_importance_of_inquiry_and_personal/.

Verifying The Noble Truth of Cessation with Modern Science

Coming to Modern science: being this democratic body of work that allows for universal participation for the discovery of new truths, building on them, allowing for course correction, and being based in empiricism - has emerged as a strong currency for truth in the last five centuries. The science a kid living in Middle East studies is the same science that the rest of the world studies.

As Carl Sagan puts it:

"Science is a way of thinking much more than it is a body of knowledge."

The Science of Cessation

A paper published in April 2023 documents a subject demonstrating cessation of perception and feeling for a duration of 90 minutes under the bright lights of a modern science lab. The subject undergoes consciously shutting down their mind and self to a state where they experience no thoughts or feelings and can't be woken up from akin to an anesthesia. Except the meditator can consciously induce it and with training, stay in this state for a pre-determined duration lasting up to 7 days. This physically observable characteristic makes it possible to study this state and human physiology scientifically.

Here is the link to the paper https://pubmed.ncbi.nlm.nih.gov/37714573/ + https://www.sciencedirect.com/science/article/abs/pii/S0079612322001984?dgcid=rss_sd_all. This and other recent research studies are opening a gateway to help humanity better understand the science of consciousness and brain.

Here is a video conversation with the subject of the study and the scientist who was part of the research team conducting the experiment explaining the details of the study and its implications: https://www.youtube.com/watch?v=OIEWAerJKOs.

Nirodha Samapatti and the Noble Truth of Cessation of Discontentment

Now, Nirodha Samapatti also known as cessation of perception and feeling is a well-described state in the early Buddhist texts in Pali canon.

Here is a sutta describing the state of cessation of perception and feeling, which is a factor of liberation: https://suttacentral.net/an9.47/en/sujato.

Furthermore, take a mendicant who, going totally beyond the dimension of neither perception nor non-perception, enters and remains in the cessation of perception and feeling. And, having seen with wisdom, their defilements come to an end. To this extent the Buddha said that extinguishment is apparent in the present life in a definitive sense.”

The Buddha shares this as a definitive way to confirm that extinguishment is reached in present life.

There is another sutta describing the state of cessation of perception and feeling in a correspondence between Venerable Mahākoṭṭhita and Venerable Sāriputta: https://suttacentral.net/mn43/en/sujato.

“What’s the difference between someone who has passed away and a mendicant who has attained the cessation of perception and feeling?” This distinction is critical, as it sometimes happens that a person in deep meditation seems as if dead.

"When someone dies, their physical, verbal, and mental processes have ceased and stilled; their vitality is spent; their warmth is dissipated; and their faculties have disintegrated. When a mendicant has attained the cessation of perception and feeling, their physical, verbal, and mental processes have ceased and stilled. But their vitality is not spent; their warmth is not dissipated; and their faculties are very clear. That’s the difference between someone who has passed away and a mendicant who has attained the cessation of perception and feeling.”

It is noted that a meditator can stay in the state of Nirodha Samapatti for up to 7 days and come back.

While Nirodha Samapatti is a definitive way to confirm the extinguishment of Nibbāna is reached, it is not a necessary attainment for one to reach Nibbāna. It is described as one of the eight liberations in another sutta, DN 16 https://suttacentral.net/dn16/en/sujato

Ānanda, there are these eight liberations. What eight?

Having physical form, they see forms. This is the first liberation.

Not perceiving form internally, they see forms externally. This is the second liberation.

They’re focused only on beauty. This is the third liberation.

Going totally beyond perceptions of form, with the ending of perceptions of impingement, not focusing on perceptions of diversity, aware that ‘space is infinite’, they enter and remain in the dimension of infinite space. This is the fourth liberation.

Going totally beyond the dimension of infinite space, aware that ‘consciousness is infinite’, they enter and remain in the dimension of infinite consciousness. This is the fifth liberation.

Going totally beyond the dimension of infinite consciousness, aware that ‘there is nothing at all’, they enter and remain in the dimension of nothingness. This is the sixth liberation.

Going totally beyond the dimension of nothingness, they enter and remain in the dimension of neither perception nor non-perception. This is the seventh liberation.

Going totally beyond the dimension of neither perception nor non-perception, they enter and remain in the cessation of perception and feeling. This is the eighth liberation.

These are the eight liberations.

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Thank you for reading the entire way. Or if you've come here directly, here's the needle in the haystack about how modern science can verify the truth of the existence of Nibbāna through a study of a subject who attained to Nirodha Samapatti under the bright bright lights of a science lab and allowed scientists to wire his brain like a christmas tree: https://www.youtube.com/watch?v=OIEWAerJKOs.

Once you've digested and verified the state of Nirodha Samapatti and the associated research, perhaps you may decide to learn the teachings of the Buddha to independently verify the truth in them.

You may be interested in checking this post next on the factors of cultivating faith: https://www.reddit.com/r/WordsOfTheBuddha/comments/189qyul/cultivating_faith_to_awaken_to_the_truth_sn_5555/

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