Saṃyutta Nikāya · Discourse 12.11

Fuel

Āhārasutta

Setting
Sāvatthī, Jeta's Grove, Anāthapiṇḍika's monastery
Speakers
The Buddha alone, addressing the assembled mendicants
Form
A direct teaching naming four fuels, then tracing each back to its source through a repeated four-part question
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
★★☆☆☆ — introduces a genuinely new framework, not just a restatement of Buddhavagga

Why this discourse

Rather than opening Āhāravagga with another retelling of the twelve-link chain, this discourse approaches the same territory from an entirely different angle: what sustains a living being at all? The answer names four fuels — edible food, contact, mental intention, and consciousness — a framework distinct from anything given in Buddhavagga. But the discourse doesn't stop at naming them; it asks what sustains the fuels themselves, and the answer — craving, then feeling, then contact, and onward — leads straight back into the familiar chain, showing two different doctrinal frameworks converging on the same underlying structure.

Reading guide

A new entry point, not a repeated formula

This discourse doesn't begin from old age and death, as every account in Buddhavagga did; it begins from an entirely different question — what sustains a living being — opening a new chapter with genuinely new content rather than another variation on the same starting point.

Four fuels, only one of them literally food

The list moves quickly past the most obvious sense of sustenance — edible food — to name three more abstract fuels: contact, mental intention, and consciousness itself, each maintaining beings in a different sense than nutrition does.

A question repeated four times to trace each fuel to its source

Having named the four fuels, the discourse doesn't leave them unexplained; it asks, in a fixed fourfold formula, what the source, origin, birthplace, and inception of these fuels actually is.

Two frameworks meeting at the same point

The answer to what sustains the four fuels turns out to be craving, and tracing craving's own source leads through feeling, contact, the six senses, and onward — the same twelve-link chain from Buddhavagga, now reached from an entirely different starting question.

A chapter title earned by its opening discourse

Āhāravagga takes its name directly from this discourse's central term; unlike some chapters named for an incidental detail in their closing discourse, this one is named for the concept its very first discourse introduces.

Key terms

cattāro āhārā — “four fuels” — the fourfold framework opening this chapter, distinct from anything named in Buddhavagga.
kabaḷīkāro āhāro oḷāriko vā sukhumo vā — “edible food, whether solid or subtle” — the first and most literal of the four fuels.
manosañcetanā — “mental intention” — the third fuel, naming the sustaining role of volitional activity itself.
kiṁnidānā kiṁsamudayā kiṁjātikā kiṁpabhavā — “what is the source, origin, birthplace, and inception” — the fixed fourfold question used to trace each fuel back to its condition.
taṇhānidānā — “craving is [their] source” — the pivotal answer connecting the four fuels back into the familiar twelve-link chain.

The text

The discourse in full, opening Āhāravagga. Translation: Bhikkhu Sujato (CC0, SuttaCentral).

§1“Mendicants, these four fuels maintain sentient beings that have been born and help those about to be born. What four? Edible food, whether solid or subtle; contact is the second, mental intention the third, and consciousness the fourth. These are the four fuels that maintain sentient beings that have been born and help those about to be born.

§2What is the source, origin, birthplace, and inception of these four fuels? Craving. And what is the source, origin, birthplace, and inception of craving? Feeling. And what is the source of feeling? Contact. And what is the source of contact? The six sense fields. And what is the source of the six sense fields? Name and form. And what is the source of name and form? Consciousness. And what is the source of consciousness? Choices. And what is the source of choices? Ignorance.

§3And so, mendicants, ignorance is a requirement for choices. Choices are a requirement for consciousness. … That is how this entire mass of suffering originates. When ignorance fades away and ceases with no residue left behind, choices cease. When choices cease, consciousness ceases. … That is how this entire mass of suffering ceases.”

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Self-check quiz

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

Question 1 of 10
How does this discourse open Āhāravagga, compared to Buddhavagga's approach?
Correct: A. A genuinely new entry point into the same underlying territory.
Question 2 of 10
What are the four fuels this discourse names?
Correct: A. A framework distinct from anything given in Buddhavagga.
Question 3 of 10
How is edible food further specified in the list?
Correct: A. The most literal of the four fuels, given a qualifying detail.
Question 4 of 10
What question does the discourse ask about the four fuels themselves?
Correct: A. A fixed fourfold formula tracing each fuel to its condition.
Question 5 of 10
What is identified as the source of the four fuels?
Correct: A. The pivotal answer connecting this new framework back to the familiar chain.
Question 6 of 10
After craving, what chain of conditions does the discourse trace backward?
Correct: A. The same twelve-link chain from Buddhavagga, reached by a new route.
Question 7 of 10
Why is this chapter named Āhāravagga?
Correct: A. A chapter named directly for its opening discourse's central concept.
Question 8 of 10
What kind of fuel is mental intention, distinct from edible food?
Correct: A. One of three more abstract fuels beyond literal food.
Question 9 of 10
Does this discourse's twelve-link chain, reached via the fuels, differ in content from Buddhavagga's chain?
Correct: A. Two frameworks converging on the identical underlying structure.
Question 10 of 10
Where does the Buddha deliver this teaching?
Correct: A. The consistent setting for this opening chapter of Āhāravagga.
Answered 0 of 10 · Correct 0