SN 54.1 — One Thing | Ru-Yi Meditation Center

Reading guide

Four tetrads, one breath

Confirmed by direct reading, the formula unfolds in four groups of four steps each: the first tetrad (long/short breath, experiencing the whole body, stilling the bodily process) maps onto body-contemplation; the second (experiencing rapture, bliss, the mental process, stilling it) onto feeling; the third (experiencing the mind, gladdening it, immersing it, freeing it) onto mind; and the fourth (observing impermanence, fading away, cessation, letting go) onto principles — sixteen steps in all, each practiced on both the in-breath and the out-breath.

A bare frame, no narrative

Confirmed by direct reading, this discourse carries no setting beyond “At Sāvatthī” and no interlocutor at all — the Buddha simply addresses the mendicants directly, matching this project's own recurring observation of Book V's own bare structural style for foundational, doctrine-stating discourses.

The saṃyutta's own name and opening vagga, confirmed directly

Confirmed by direct reading of this file's own “0.2” vagga field (“Ekadhammavagga,” “the One-Thing chapter”) and its own closing ordinal (“Paṭhamaṁ,” “first”), this discourse opens both the saṃyutta's own first vagga and the saṃyutta itself.

Key terms

ānāpānassati — “mindfulness of breathing” — this saṃyutta's own governing subject and this discourse's own “one thing”

dīghaṁ vā assasanto...rassaṁ vā assasanto — “breathing in heavily...breathing in lightly” — the formula's own opening pair, simply knowing the breath's own length

sabbakāyappaṭisaṁvedī — “experiencing the whole body” — the first tetrad's own third step, extending awareness beyond the breath alone

pītippaṭisaṁvedī...sukhappaṭisaṁvedī — “experiencing rapture...experiencing bliss” — the second tetrad's own opening steps, mapping onto feeling-contemplation

aniccānupassī...paṭinissaggānupassī — “observing impermanence...observing letting go” — the fourth tetrad's own four steps, mapping onto contemplation of principles, the formula's own most advanced stage

The text

The complete sixteen-step formula, given here in full. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

§1At Sāvatthī.

§2“Mendicants, when one thing is developed and cultivated it’s very fruitful and beneficial. What one thing? Mindfulness of breathing. And how is mindfulness of breathing developed and cultivated to be very fruitful and beneficial? It’s when a mendicant—gone to a wilderness, or to the root of a tree, or to an empty hut—sits down cross-legged, sets their body straight, and brings mindfulness to the present. Just mindful, they breathe in. Mindful, they breathe out.

First tetradBreathing in heavily they know: ‘I’m breathing in heavily.’ Breathing out heavily they know: ‘I’m breathing out heavily.’ When breathing in lightly they know: ‘I’m breathing in lightly.’ Breathing out lightly they know: ‘I’m breathing out lightly.’ They practice like this: ‘I’ll breathe in experiencing the whole body.’ They practice like this: ‘I’ll breathe out experiencing the whole body.’ They practice like this: ‘I’ll breathe in stilling the physical process.’ They practice like this: ‘I’ll breathe out stilling the physical process.’

Second tetradThey practice like this: ‘I’ll breathe in experiencing rapture.’ They practice like this: ‘I’ll breathe out experiencing rapture.’ They practice like this: ‘I’ll breathe in experiencing bliss.’ They practice like this: ‘I’ll breathe out experiencing bliss.’ They practice like this: ‘I’ll breathe in experiencing the mental process.’ They practice like this: ‘I’ll breathe out experiencing the mental process.’ They practice like this: ‘I’ll breathe in stilling the mental process.’ They practice like this: ‘I’ll breathe out stilling the mental process.’

Third tetradThey practice like this: ‘I’ll breathe in experiencing the mind.’ They practice like this: ‘I’ll breathe out experiencing the mind.’ They practice like this: ‘I’ll breathe in gladdening the mind.’ They practice like this: ‘I’ll breathe out gladdening the mind.’ They practice like this: ‘I’ll breathe in immersing the mind in samādhi.’ They practice like this: ‘I’ll breathe out immersing the mind in samādhi.’ They practice like this: ‘I’ll breathe in freeing the mind.’ They practice like this: ‘I’ll breathe out freeing the mind.’

Fourth tetradThey practice like this: ‘I’ll breathe in observing impermanence.’ They practice like this: ‘I’ll breathe out observing impermanence.’ They practice like this: ‘I’ll breathe in observing fading away.’ They practice like this: ‘I’ll breathe out observing fading away.’ They practice like this: ‘I’ll breathe in observing cessation.’ They practice like this: ‘I’ll breathe out observing cessation.’ They practice like this: ‘I’ll breathe in observing letting go.’ They practice like this: ‘I’ll breathe out observing letting go.’

§3Mindfulness of breathing, when developed and cultivated in this way, is very fruitful and beneficial.”

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Self-check quiz

3 questions. Click an answer to see immediate feedback. No score is recorded — this is for your own checking.

Question 1 of 3

How many steps does the ānāpānasati formula given here contain, and how are they grouped?

Correct: A. Confirmed by direct reading: four tetrads, sixteen steps, each practiced on both in-breath and out-breath.

Question 2 of 3

What do the four tetrads of this formula map onto, according to this project's own cross-reference?

Correct: A. Confirmed by direct comparison: body-, feeling-, mind-, and principle-contemplation, in that order.

Question 3 of 3

What structural role does this discourse play in the Ānāpānasaṃyutta, confirmed by direct reading of its own vagga field and closing ordinal?

Correct: A. Confirmed directly — "Ekadhammavagga" and "Paṭhamaṁ" (first), an opening discourse.

Answered 0 of 3 · Correct 0

One Thing

Why this discourse