The Buddha alone, addressing the assembled mendicants
Form
A short causal argument: the aggregates are impermanent, their cause is also impermanent, therefore what they produce cannot be permanent
Length
~2 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 new argument form not used earlier in this vagga
Why this discourse
The five preceding discourses in this vagga (SN 22.12-17) all concerned the aggregates directly — whether they are impermanent, suffering, or not-self, and how those claims connect. This discourse opens a new line of argument entirely: it reaches behind the aggregates to their cause. Form is impermanent, and the cause and reason that gives rise to form is also impermanent — so, the discourse asks, since form is produced by something impermanent, how could form itself be permanent? An effect cannot outrank its own cause in stability; something arising from impermanent conditions inherits that impermanence by the very fact of its arising.
Reading guide
A new kind of argument for an old conclusion
The discourse reaches the same conclusion as SN 22.12-17 — the aggregates are impermanent — but by an entirely different route. Rather than simply observing that form changes, it points to what produces form in the first place and observes that this cause is impermanent too, then asks a rhetorical question rather than making a further assertion: since form is produced by what is impermanent, how could it be permanent?
An argument from what a thing depends on
The reasoning here works by a kind of inheritance: whatever arises dependent on impermanent conditions cannot itself escape those conditions' instability, because its very existence is conditioned by something already unstable. This connects the vagga's material back to the broader framework of dependent origination (paṭicca-samuppāda) explored at length in Book II, now applied specifically to the causal relationship between an aggregate and whatever gives rise to it.
A rhetorical question, not a further claim
The discourse's closing move for each aggregate is phrased as a question rather than a flat statement — “how could it be permanent?” — inviting the listener to complete the inference themselves rather than being handed the conclusion outright. This is a small but distinctive shift in register from the direct assertions of SN 22.12-17.
Opening a matched trio parallel to the one before it
This discourse begins a second telescoping-style trio, structurally parallel to SN 22.15-17 but applying the cause-based argument to each of the three marks in turn: impermanence here, suffering in SN 22.19, and not-self in SN 22.20. Each of the three shares this discourse's exact rhetorical-question structure, differing only in which mark and which corresponding opposite (permanent, happiness, self) is being ruled out.
Key terms
hetu paccaya — “cause and reason” — the phrase naming what produces each aggregate, the discourse's new focus beyond the aggregate itself.
uppanna — “produced” or “arisen” — the relationship between an aggregate and its impermanent cause, central to the discourse's inheritance argument.
kuto niccaṁ bhavissati — “how could it be permanent?” — the discourse's closing rhetorical question, inviting the listener to complete the inference rather than stating the conclusion outright.
paṭicca-samuppāda — “dependent origination” — the broader framework from Book II this discourse's causal reasoning connects back to, now applied to a single aggregate's relationship to its cause.
anicca — “impermanent” — here applied twice over, to both an aggregate and, distinctly, to whatever produces that aggregate.
The text
The discourse in full. Three elided repetitions (feeling, perception, and choices, each following the same causal argument spelled out in full for form and consciousness) are given exactly as bilara-data preserves them. Translation: Bhikkhu Sujato (CC0, SuttaCentral).
§1At Sāvatthī. “Mendicants, form is impermanent. The cause and reason that gives rise to form is also impermanent. Since form is produced by what is impermanent, how could it be permanent?
§2Consciousness is impermanent. The cause and reason that gives rise to consciousness is also impermanent. Since consciousness is produced by what is impermanent, how could it be permanent? Seeing this … They understand: ‘… there is nothing further for this place.’”
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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
What new element does this discourse introduce, not present in SN 22.12-17?
Correct: A. The discourse reaches behind the aggregates to what produces them.
Question 2 of 10
What does this discourse claim about the cause that produces form?
Correct: A. The cause shares the same impermanence as its effect.
Question 3 of 10
How is the discourse's conclusion phrased?
Correct: A. Inviting the listener to complete the inference themselves.
Question 4 of 10
What broader framework does this discourse's causal reasoning connect back to?
Correct: A. Now applied specifically to an aggregate's relationship to its cause.
Question 5 of 10
What relationship does this discourse claim between an effect and an impermanent cause?
Correct: A. An argument from inheritance, not mere coincidence.
Question 6 of 10
How does this discourse's structure compare to SN 22.15-17?
Correct: A. SN 22.18-20 mirror SN 22.15-17's structure while introducing the cause-based argument.
Question 7 of 10
How many aggregates does this discourse's argument apply to?
Correct: A. Feeling, perception, and choices are elided but follow the same pattern.
Question 8 of 10
Where is this discourse set?
Correct: A. Continuing the same setting as the vagga's other discourses.
Question 9 of 10
What discourse comes immediately after this one?
Correct: A. The second term of the parallel cause-based trio.
Question 10 of 10
Does this discourse claim the aggregates' cause is a permanent, unchanging first cause?
Correct: A. The argument depends precisely on the cause sharing the effect's impermanence.
