The six classes of perception are impermanent, changing, and becoming otherwise. Accepting this through faith or wisdom guarantees stream-entry.

SN 25.6  Rūpasaññā sutta - Perception of Form

Sāvatthinidānaṁ.

At Sāvatthi.

“Rūpasaññā, bhikkhave, aniccā vipariṇāmī aññathābhāvī; saddasaññāgandhasaññārasasaññāphoṭṭhabbasaññādhammasaññā aniccā vipariṇāmī aññathābhāvī.

“|Perception of form::recognition of matter, concept of materiality [rūpasaññā]||, bhikkhus,::::| is |impermanent::not lasting, transient, unreliable [anicca]|, changing, becoming otherwise; |perception of sound::recognition of sound [saddasaññā]| ... |perception of smell::recognition of an odor, concept of smell [gandhasaññā]| ... |perception of taste::recognition of flavor, concept of flavour [rasasaññā]| ... |perception of touch::recognition of touch, concept of tactile sensation [phoṭṭhabbasaññā]| ... |perception of mental activity::recognition of mental phenomena [dhammasaññā]| is impermanent, changing, becoming otherwise.

Yo, bhikkhave, ime dhamme evaṁ saddahati adhimuccati, ayaṁ vuccati ‘saddhānusārī …pe… sambodhiparāyano’”ti.

Anyone|, bhikkhus,::::| who places faith and conviction in these |phenomena::characteristics, thoughts, mental states, mental qualities [dhammā]| in this way is called a faith-follower ... with awakening as their destination.”

Topics & Qualities:

Faith

Faith

Confidence in the Buddha's awakening and the efficacy of the path. It brightens and steadies the mind, removing doubt and inspiring energy toward wholesome practice. True faith rests on clarity and direct experience rather than mere belief.

Also known as: confidence, trust, belief, conviction, self-assurance
Pāli: saddha, pasanna
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Perception

Perception

The mental process of recognizing and giving meaning to experience. It marks sensory information by signs, labels, or associations drawn from memory and the field of contact. Perception shapes how one experiences the world. It is the third of the five aggregates.

Also known as: recognition, conception
Pāli: sañña
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Recognition of impermanence

Recognition of impermanence

Perceiving all conditioned things as unstable and transient. This recognition weakens attachment by revealing the continual arising and ceasing of phenomena, turning the mind toward wisdom and release.

Also known as: perception of impermanence, perception of instability, realization of transience
Pāli: aniccasaññā
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Last updated on May 20, 2026