Saṃyutta Nikāya · Discourse 35.241

The Simile of the Tree Trunk (1st)

Paṭhamadārukkhandhopamasutta — Āsīvisavagga

Setting
Kosambī, on the bank of the Ganges river
Speakers
The Buddha, an unnamed mendicant, and Nanda the cowherd
Form
A river-borne log simile, a sevenfold list of ways to go astray, each decoded in turn, and a closing narrative of on-the-spot ordination
Length
~3 minutes to read
Northern parallel
A rough counterpart may exist in the Chinese Saṃyukta-āgama (T99), though this reading guide does not assert a specific matching sutra number
Difficulty
★★★☆☆ — a sevenfold list rewards careful tracking

Why this discourse

Watching a large tree trunk carried along by the Ganges current, the Buddha observes that if it avoids seven specific mishaps — drifting to either shore, sinking in the middle, getting stranded on high ground, being taken by humans or non-humans, getting caught in a whirlpool, or rotting away — it will inevitably reach the ocean, simply because the river's current itself inclines that way. Applied to a mendicant, the same seven hazards are decoded one by one, and the discourse closes with an unexpected scene: Nanda the cowherd, sitting nearby, declares he is already free of all seven and asks for ordination on the spot — though the Buddha still requires him to return his cows to their owners first.

Reading guide

A trajectory, not an effort

The log doesn't have to swim toward the ocean; it only has to avoid seven specific failures, because the river's current already inclines that way. The parallel claim for the mendicant is equally passive in form: avoiding the same seven hazards is enough, because “right view slants, slopes, and inclines towards extinguishment” on its own.

Seven hazards, each given its own precise gloss

The near shore and far shore are the six interior and six exterior sense fields; sinking in the middle is greed and relishing; being stranded on high ground is the conceit “I am”; getting taken by humans is over-involvement in laypeople's business; getting taken by non-humans is practicing for the sake of rebirth as a god; getting caught in a whirlpool is the five kinds of sensual stimulation; and rotting away is unethical, corrupt conduct concealed behind an ascetic's appearance.

A layperson who claims the whole list at once

Nanda the cowherd, previously silent, speaks up only after hearing the full sevenfold decode, declaring in one unbroken sentence that none of the seven applies to him — the discourse's only instance of someone outside the monastic audience directly answering back in the terms just given.

A concrete condition before ordination is granted

The Buddha doesn't ordain Nanda immediately despite his declaration; he first requires the very practical step of returning the borrowed cows to their owners. Nanda's own reasoning — that the cows would return to their calves by themselves — is overruled, and only after he completes the errand and reports back is he ordained, becoming one of the perfected “not long after.”

Key terms

samuddaninno samuddapoṇo samuddapabbhāro — “slant, slope, and incline towards the ocean” — the log's own trajectory, paralleled by right view's own inclination towards extinguishment
orimaṁ tīraṁ / pārimaṁ tīraṁ — the near shore and the far shore — glossed as the six interior and six exterior sense fields respectively
majjhe saṁsādo — “sinking in the middle” — glossed as greed and relishing (nandīrāga)
thale ussādo — “stranded on high ground” — glossed as the conceit “asmi,” “I am”
gamissanti, bhante, gāvo vacchagiddhiniyo — “the cows will go back by themselves, since they love their calves” — Nanda's own overruled reasoning, before the Buddha repeats the instruction unchanged

The text

The complete discourse: the log simile, the sevenfold decode, and Nanda the cowherd's ordination. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

§1At one time the Buddha was staying near Kosambī on the bank of the Ganges river. Seeing a large tree trunk being carried along by the current, he addressed the mendicants, “Mendicants, do you see that large tree trunk being carried along by the current of the Ganges river?” “Yes, sir.” “Mendicants, assume that that tree trunk doesn’t drift towards the near shore or the far shore, or sink in the middle, or get stranded on high ground. And assume that it doesn’t get taken by humans or non-humans or caught up in a whirlpool, and that it doesn’t rot away. In that case, that tree trunk will slant, slope, and incline towards the ocean. Why is that? Because the current of the Ganges river slants, slopes, and inclines towards the ocean.

§2In the same way, assume that you don’t drift towards the near shore or the far shore, or sink in the middle, or get stranded on high ground. And assume that you don’t get taken by humans or non-humans or caught up in a whirlpool, and that you don’t rot away. In that case, you will slant, slope, and incline towards extinguishment. Why is that? Because right view slants, slopes, and inclines towards extinguishment.” When he said this, one of the mendicants asked the Buddha: “But sir, what’s the near shore and what’s the far shore? What’s sinking in the middle? What’s getting stranded on high ground? What’s getting taken by humans or non-humans? What’s getting caught up in a whirlpool? And what’s rotting away?”

§3“‘The near shore’, mendicant, is a term for the six interior sense fields. ‘The far shore’ is a term for the six exterior sense fields. ‘Sinking in the middle’ is a term for greed and relishing. ‘Stranded on high ground’ is a term for the conceit ‘I am’.

§4And what’s getting taken by humans? It’s when someone mixes closely with laypeople, sharing their joys and sorrows—happy when they’re happy and sad when they’re sad—and getting themselves involved in their business. That’s called getting taken by humans.

§5And what’s getting taken by non-humans? It’s when someone leads the spiritual life wishing to be reborn in one of the orders of gods: ‘By this precept or observance or fervent austerity or spiritual practice, may I become one of the gods!’ That’s called getting taken by non-humans. ‘Caught up in a whirlpool’ is a term for the five kinds of sensual stimulation.

§6And what’s rotting away? It’s when some person is unethical, of bad qualities, filthy, with suspicious behavior, underhand, no true ascetic or spiritual practitioner—though claiming to be one—rotten inside, festering, and depraved. This is called ‘rotting away’.”

§7Now at that time Nanda the cowherd was sitting not far from the Buddha. Then he said to the Buddha: “I won’t drift towards the near shore or the far shore, or sink in the middle, or get stranded on high ground. And I won’t get taken by humans or non-humans or caught up in a whirlpool, and I won’t rot away. Sir, may I receive the going forth, the ordination in the Buddha’s presence?” “Well then, Nanda, return the cows to their owners.” “Sir, the cows will go back by themselves, since they love their calves.” “Still, Nanda, you should return them to their owners.” Then Nanda, after returning the cows to their owners, went up to the Buddha and said to him, “Sir, I have returned the cows to their owners. May I receive the going forth, the ordination in the Buddha’s presence?” And the cowherd Nanda received the going forth, the ordination in the Buddha’s presence. Not long after his ordination, Venerable Nanda became one of the perfected.

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Self-check quiz

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

Question 1 of 5
Why will the log inevitably reach the ocean, according to the Buddha's opening claim?
Correct: A. "Because the current of the Ganges river slants, slopes, and inclines towards the ocean" — a trajectory, not an effort.
Question 2 of 5
What does "sinking in the middle" represent in the sevenfold decode?
Correct: A. "'Sinking in the middle' is a term for greed and relishing."
Question 3 of 5
How does Nanda the cowherd respond after hearing the full sevenfold decode?
Correct: A. Nanda answers back in the discourse's own terms, claiming freedom from all seven hazards at once.
Question 4 of 5
What condition does the Buddha require before ordaining Nanda?
Correct: A. Nanda's own reasoning that the cows would return themselves is overruled — he must complete the errand first.
Question 5 of 5
What happens to Nanda shortly after his ordination?
Correct: A. "Not long after his ordination, Venerable Nanda became one of the perfected."
Answered 0 of 5 · Correct 0