The Buddha shares vivid similes to illustrate the benefits of developing the recognition of impermanence. This practice gradually exhausts all passion for sensual pleasure, materiality, becoming, ignorance, and uproots the conceit ‘I am.’

And how, bhikkhus, when the recognition of impermanence is developed and frequently practiced, does it exhaust all passion for sensual pleasure, all passion for materiality, all desire for becoming, all ignorance, and utterly uproot the conceit ‘I am’? 'Such is |form::materiality, material existence, experience of the material world, i.e. encompassing both one's body and external objects, whether near or far, gross or subtle, deficient or refined; first of the five aggregates [rūpa]|, such is the |arising::appearance, origination [samudaya]| of form, such is the |passing away::disappearance, vanishing, subsiding [atthaṅgama]| of form; such is |felt experience::pleasant, neutral, or painful sensation, feeling felt on contact through eye, ear, nose, tongue, body, mind; second of the five aggregates [vedanā]|, such is the arising of felt experience, such is the passing away of felt experience; such is |perception::The mental process of recognizing and giving meaning to experience. It marks things by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world; third of the five aggregates [sañña]|, such is the arising of perception, such is the passing away of perception; such are |intentional constructs::intentions, volitions, choices; mental and bodily volitional activities; thought formations and constructed experiences (including proliferative tendencies); kamma-producing processes; fourth of the five aggregates [saṅkhāra]|, such is the arising of intentional constructs, such is the passing away of intentional constructs; such is |consciousness::quality of awareness — distinctive knowing that arises in dependence on the meeting of eye and form, ear and sound, nose and odor, tongue and taste, body and tangible object, mind and mind object; fifth of the five aggregates [viññāṇa]|, such is the arising of consciousness, such is the passing away of consciousness.'

Because the five aggregates are impermanent, the well-studied disciple of the Noble Ones becomes disenchanted with form, felt experience, perception, intentional constructs, and consciousness.

"|Form::materiality, material existence, experience of the material world, i.e. encompassing both one's body and external objects, whether near or far, gross or subtle, deficient or refined; first of the five aggregates [rūpa]|, bhikkhus, is impermanent, |felt experience::pleasant, neutral, or painful sensation, feeling felt on contact through eye, ear, nose, tongue, body, mind; second of the five aggregates [vedanā]| is impermanent, |perception::The mental process of recognizing and giving meaning to experience. It marks things by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world; third of the five aggregates [sañña]| is impermanent, |intentional constructs::intentions, volitions, choices; mental and bodily volitional activities; thought formations and constructed experiences (including proliferative tendencies); kamma-producing processes; fourth of the five aggregates [saṅkhāra]| are impermanent, |consciousness::quality of awareness — distinctive knowing that arises in dependence on the meeting of eye and form, ear and sound, nose and odor, tongue and taste, body and tangible object, mind and mind object; fifth of the five aggregates [viññāṇa]| is impermanent.

After examining the impermanence, unsatisfactoriness, and the changing nature of the five aggregates, the Buddha teaches how to see them with proper wisdom, as not being suitable to identify with.

The Blessed One said this. The group of five bhikkhus were satisfied and rejoiced in the Blessed One's words. And while this discourse was being spoken, the minds of the group of five bhikkhus were liberated from the |mental defilements::mental outflows, discharges, taints [āsava]| through non-clinging.

The Buddha shares his own journey of seeking the path to awakening, from leaving the household life, to studying under two meditation teachers, to attaining full awakening and an account of teaching the Dhamma to his first five disciples.

Further, bhikkhus, with the complete surpassing of |perceptions of form::recognition of matter, concept of materiality [rūpasaññā]|, with the disappearance of |perceptions of sensory impact::recognition of sense impression [paṭighasaññā]|, and non-attention to |perceptions of diversity::recognition of diversity, perception of multiplicity [nānattasaññā]|, the bhikkhu enters and dwells in the |base of boundless space::field of boundless expanse, sometimes translated as dimension of infinite space [ākāsānañcāyatana]|, aware that 'space is boundless.' This, bhikkhus, is called a bhikkhu who has blinded Māra, who has gone beyond the Evil One's sight, becoming invisible to him.

Endowed with ten powers and four assurances, the Buddha reveals the impermanence of the five aggregates and teaches dependent co-arising.

With the |complete fading away and ending::remainderless dispassion and cessation [asesavirāganirodha]| of ignorance comes ending of intentional constructs; with the ending of intentional constructs, ending of consciousness; with the ending of consciousness, ending of name and form; with the ending of name and form, ending of the six sense bases; with the ending of the six sense bases, ending of contact; with the ending of contact, ending of felt experience; with the ending of felt experience, ending of craving; with the ending of craving, ending of clinging; with the ending of clinging, ending of existence; with the ending of existence, ending of birth; with the ending of birth, aging and death, sorrow, lamentation, pain, distress, and despair cease. Thus is the ending of this whole mass of suffering.”

The causes, supporting conditions for the arising of the five aggregates are impermanent, so then how could the five aggregates be stable?

|Perception::The mental process of recognizing and giving meaning to experience. It marks things by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world; third of the five aggregates [sañña]| is impermanent. Whatever cause, whatever supporting condition there is for the arising of perception, that is also impermanent. Arising from what is impermanent, bhikkhus, how could perception be stable?

Dhammapada verses 100-115 share the importance of one teaching that brings peace, the benefits of self-conquest, the value of honoring the awakened, and the importance of rousing of energy and recognizing impermanence.

Rather than a hundred verses, composed of meaningless words; Better is one saying of the |Dhamma::teachings of the Buddha that point to the nature of reality, the ultimate truth [dhamma]|, hearing which, one is calmed.

The Buddha, endowed with the ten powers and four assurances, reveals the impermanence of the five aggregates and teaches dependent co-arising. He then urges the bhikkhus to practice with diligence for their highest welfare as well as for the welfare of others.

With the |complete fading away and ending::remainderless dispassion and cessation [asesavirāganirodha]| of ignorance comes ending of intentional constructs; with the ending of intentional constructs, ending of consciousness; with the ending of consciousness, ending of name and form; with the ending of name and form, ending of the six sense bases; with the ending of the six sense bases, ending of contact; with the ending of contact, ending of felt experience; with the ending of felt experience, ending of craving; with the ending of craving, ending of clinging; with the ending of clinging, ending of existence; with the ending of existence, ending of birth; with the ending of birth, aging and death, sorrow, lamentation, pain, distress, and despair cease. Thus is the ending of this whole mass of suffering.’

The Buddha instructs Rāhula on how to regard the five aggregates as not-self which he immediately applies to practice. The Buddha then teaches Rāhula on how to meditate on the elements, the divine abodes, unattractiveness, impermanence, and mindfulness of breathing to abandon unwholesome mental qualities and cultivate wholesome mental qualities.

Rāhula, cultivate meditation on |recognition of impermanence::perception of instability, inconsistency [aniccasaññā]|. For when you cultivate meditation on recognition of impermanence, the |conceit ‘I am.’::egotism, self-conceit, self comparison [asmimāna]| will be abandoned.

The Buddha explains the five lower fetters and the way of practice for abandoning them.

Furthermore, Ānanda, with the complete surpassing of |perceptions of form::recognition of matter, concept of materiality [rūpasaññā]|, with the disappearance of |perceptions of sensory impact::recognition of sense impression [paṭighasaññā]|, and non-attention to |perceptions of diversity::recognition of diversity, perception of multiplicity [nānattasaññā]|, a bhikkhu enters and dwells in the |base of boundless space::field of boundless expanse, sometimes translated as dimension of infinite space [ākāsānañcāyatana]|, aware that 'space is boundless.' Whatever phenomena are present there, whether pertaining to sensations, perceptions, formations, or consciousness - he perceives as impermanent, suffering, a disease, a boil, a dart, misery, an affliction, alien, disintegrating, empty, and not-self. He turns his mind away from these phenomena. Having turned his mind away, he directs it towards the deathless element, reflecting: 'This is peaceful, this is sublime, namely the stilling of all formations, the relinquishment of all attachments, the wearing away of craving, dispassion, cessation, Nibbāna.' If he is steady in that state, he experiences the wearing away of the mental defilements. But if he does not experience the wearing away of the mental defilements because of that desire for the Dhamma, that delight in the Dhamma, then, with the wearing away of the five lower fetters, he becomes one due to reappear spontaneously in the Pure Abodes, and there he will attain final Nibbāna without ever returning from that world. This, indeed, Ānanda, is also the path, the way of practice for the abandonment of the five lower fetters.

The Buddha explains how his teaching of the Dhamma inspires fear and dread in the deities, just as the lion's roar inspires fear in the animals.

In the same way, bhikkhus, when the Tathāgata arises in the world, the Arahant, perfectly Awakened One, accomplished in wisdom and conduct, who has reached the destination, knower of the world, the unsurpassed guide of trainable persons, the teacher of gods and humans, Buddha, Fortunate One, he teaches the Dhamma thus: 'Such is |form::materiality, material existence, experience of the material world, i.e. encompassing both one's body and external objects, whether near or far, gross or subtle, deficient or refined; first of the five aggregates [rūpa]|, such is the |arising::appearance, origination [samudaya]| of form, such is the |passing away::disappearance, vanishing, subsiding [atthaṅgama]| of form; such is |felt experience::pleasant, neutral, or painful sensation, feeling felt on contact through eye, ear, nose, tongue, body, mind; second of the five aggregates [vedanā]|, such is the arising of felt experience, such is the passing away of felt experience; such is |perception::The mental process of recognizing and giving meaning to experience. It marks things by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world; third of the five aggregates [sañña]|, such is the arising of perception, such is the passing away of perception; such are |intentional constructs::intentions, volitions, choices; mental and bodily volitional activities; thought formations and constructed experiences (including proliferative tendencies); kamma-producing processes; fourth of the five aggregates [saṅkhāra]|, such is the arising of intentional constructs, such is the passing away of intentional constructs; such is |consciousness::quality of awareness — distinctive knowing that arises in dependence on the meeting of eye and form, ear and sound, nose and odor, tongue and taste, body and tangible object, mind and mind object; fifth of the five aggregates [viññāṇa]|, such is the arising of consciousness, such is the passing away of consciousness.'

Only after fully understanding the gratification, drawback, and escape in the case of form, felt experience, perception, intentional constructs, and consciousness, the Buddha declared that he had attained the unsurpassed perfect awakening.

'What is the |gratification::satisfaction, pleasure, enjoyment, sweetness [assāda]|, what is the |drawback::disadvantage, unsatisfactoriness, inadequacy, danger [ādīnava]|, and what is the |escape::way out, remedy [nissaraṇa]| in the case of form? What is the gratification, what is the drawback, and what is the escape in the case of felt experience? What is the gratification, what is the drawback, and what is the escape in the case of perception? What is the gratification, what is the drawback, and what is the escape in the case of intentional constructs? What is the gratification, what is the drawback, and what is the escape in the case of consciousness?'

The Buddha teaches in detail how to develop mindfulness while breathing in and out through sixteen naturally unfolding steps, showing how their cultivation fulfills the four establishments of mindfulness, which in turn fulfill the seven factors of awakening, culminating in true knowledge and liberation.

In this Saṅgha of bhikkhus, there are bhikkhus who are devoted to the cultivation of the |four establishments of mindfulness::four foundations or objective domains of mindfulness that one gradually establishes and cultivates as a direct way of practice [catu + satipaṭṭhāna]| — such bhikkhus are found in this Sangha of bhikkhus. In this Saṅgha of bhikkhus, there are bhikkhus who are devoted to the cultivation of the |four right efforts::the application of correct effort to prevent unwholesome states, abandon arisen unwholesome states, generate wholesome states, and maintain arisen wholesome states [catu + sammappadhāna]|, the |four bases of spiritual power::bases for the causal strength of aspiration, determination, purification of mind, and investigation; basis for success [catu + iddhipādā]|, the |five faculties::the mental faculties of faith, energy, mindfulness, collectedness, and wisdom [pañca + indriya]|, the |five powers::the strengthened and unshakable cultivation of the five faculties of faith, energy, mindfulness, collectedness, and wisdom [pañca + bala]|, the |seven factors of awakening::mindfulness, investigation of mental qualities, energy, joy, tranquility, collectedness, and equanimity [satta + bojjhaṅga]|, and the |Noble Eightfold Path::the path consisting of right view, right intention, right speech, right action, right livelihood, right effort, right mindfulness, and right collectedness [ariya + aṭṭhaṅgika + magga]| — such bhikkhus are found in this Saṅgha of bhikkhus. In this Saṅgha of bhikkhus, there are bhikkhus who are devoted to the cultivation of |loving-kindness::goodwill, friendliness, benevolence [mettā]|, to the cultivation of |compassion::mental quality of wise empathy in response to suffering, which counters qualities of harm or cruelty [karuṇā]|, to the cultivation of |sympathetic joy::mental quality of rejoicing in the success and happiness of others, which counters envy [muditā]|, to the cultivation of |equanimity::mental poise, mental balance, equipoise, non-reactivity, composure [upekkhā]|, to the cultivation of the perception of |unattractiveness::disagreeable, not aesthetically pleasing [asubha]|, to the cultivation of the |recognition of impermanence::perception of instability, inconsistency [aniccasaññā]| — such bhikkhus are found in this Saṅgha of bhikkhus. In this Saṅgha of bhikkhus, there are bhikkhus who are devoted to the cultivation of mindfulness while breathing in and out — such bhikkhus are found in this Saṅgha of bhikkhus.

The Buddha does not dispute with the world, but rather the world disputes with him. He agrees with what the wise in the world accept as existing and not existing, and then explains the characteristics of the five aggregates in regards to what exists and what does not exist.

"Bhikkhus, I do not |dispute::argue, disagree [vivadati]| with the world; rather, it is the world that disputes with me. Bhikkhus, one who speaks in accordance with the |Dhamma::teachings of the Buddha that point to the nature of reality, the ultimate truth [dhamma]| does not dispute with anyone in the world. Of that which is accepted as not existing by the wise in the world, I also say, 'It does not exist.' Of that which is accepted as existing by the wise in the world, I also say, 'It exists.'

The Buddha describes four ways to attain final Nibbāna with or without exertion.

And how, bhikkhus, does a person attain final Nibbāna without exertion in this very life? Here, bhikkhus, a bhikkhu, having secluded himself from sensual pleasures and |unwholesome::unhealthy, unskillful, unbeneficial, or karmically unprofitable [akusala]| mental qualities, enters and dwells in the first jhāna, which is |accompanied by reflection::with thinking [savitakka]| and |examination::with investigation, evaluation [savicāra]|, |born from seclusion::secluded from the defilements [vivekaja]|, and is |filled with joyful pleasure::imbued with joy and happiness, with delight and ease, sometimes experienced as an intense joy or pleasure, rapture [pītisukha]|. With the |settling::calming, conciliation, subsiding [vūpasama]| of reflection and examination, the bhikkhu enters and dwells in the second jhāna, which is characterized by internal |tranquility::calming, settling, confidence [sampasādana]| and |unification::singleness, integration [ekodibhāva]| of mind, is without reflection and examination, |born from collectedness::born from a stable mind [samādhija]|, and is filled with joyful pleasure. With the fading away of joyful pleasure, he dwells in a |state of equanimity::mental poised, mentally balanced, equanimous, non-reactive, disregarding [upekkhaka]|, |mindful and fully aware::attentive and completely comprehending [sata + sampajāna]|, experiencing |ease::comfort, contentedness, happiness, pleasure [sukha]| with the body. He enters and dwells in the third jhāna, which the Noble Ones describe as 'one who dwells equanimous, mindful and at ease.' With the abandonment of ease and |discontentment::discomfort, unpleasantness, something unsatisfactory, stress [dukkha]|, and with the settling down of |joy and sorrow::craving and aversion, pleasure and displeasure, satisfaction and dissatisfaction, gladness and dejection, positive state of mind and negative state of mind [somanassadomanassa]|, he enters and dwells in the fourth jhāna, which is characterized by purification of |mindfulness::full awareness and recollection of the body, feelings, mind, and mental qualities, observing them clearly with sustained attention, free from craving and distress [sati]| through |equanimity::mental poise, mental balance, equipoise, non-reactivity, composure [upekkhā]|, experiencing a feeling which is neither-painful-nor-pleasant. He lives relying on these five powers of a trainee: the power of confidence, the power of moral shame, the power of moral dread, the power of persistence, and the power of wisdom. These five spiritual faculties develop strongly in him: the faculty of faith, the faculty of energy, the faculty of mindfulness, the faculty of collectedness, and the faculty of wisdom. Because these five faculties have developed strongly in him, he attains final Nibbāna without exertion in this very life. Thus, bhikkhus, a person attains final Nibbāna without exertion in this very life.

When the venerable Ānanda wishes to go for a solitary retreat, the Buddha teaches him to contemplate the five aggregates subject to appropriation and being assumed as one's self.

“And that which is impermanent, dissatisfactory, and |subject to change::of the nature of alteration, decay [vipariṇāmadhamma]|—is it fitting to regard that as: ‘This is mine, this I am, this is my self’?”

By clinging to the five aggregates, one experiences pleasure and pain.

“When there is |form::materiality, material existence, experience of the material world, i.e. encompassing both one's body and external objects, whether near or far, gross or subtle, deficient or refined; first of the five aggregates [rūpa]|, bhikkhus, by clinging to form, pleasure and pain arise internally. When there is |felt experience::pleasant, neutral, or painful sensation, feeling, second of the five aggregates [vedanā]|, by clinging to felt experience, pleasure and pain arise internally. When there is |perception::The mental process of recognizing and giving meaning to experience. It marks things by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world; third of the five aggregates [sañña]|, by clinging to perception, pleasure and pain arise internally. When there are |intentional constructs::intentions, volitions, choices; mental and bodily volitional activities; thought formations and constructed experiences (including proliferative tendencies); kamma-producing processes [saṅkhāra]|, by clinging to intentional constructs, pleasure and pain arise internally. When there is |consciousness::quality of awareness — distinctive knowing that arises in dependence on the meeting of eye and form, ear and sound, nose and odor, tongue and taste, body and tangible object, mind and mind object [viññāṇa]|, by clinging to consciousness, pleasure and pain arise internally.”