What Cannot Happen (I)

Reading guide

The teaching in one sentence

Once a person has actually seen how things are, a specific list of acts and errors becomes not merely unlikely for them but impossible.

What kind of impossibility

The Pāli formula is aṭṭhānaṁ anavakāso — there is no basis, no opportunity — and it is the same phrase used at AN 1.41 about a rice spike pointing the wrong way. It is not a prohibition. Nobody is being told not to do these things; they are being described as unavailable.

The distinction matters practically. A rule can be broken. What this chapter describes is closer to the way a person who genuinely understands that a wall is solid cannot walk through it by deciding to. The accomplishment in view is not a resolution that could be abandoned under pressure; it is a change in what the person is able to take seriously. Read that way the list is not a set of expectations imposed on stream-enterers. It is a description offered as a diagnostic: this is what having seen it actually rules out.

The first three, and the last seven

The chapter divides. AN 1.268–270 concern perception: someone accomplished in view cannot take any conditioned thing as permanent, or as pleasant, or take anything at all as self. These are the three characteristics, stated as incapacities. The claim is not that such a person never feels pleasure or never speaks of themselves, but that they cannot any longer take what is conditioned in those ways — the mistake has been closed off at its root.

AN 1.271–275 then list five acts: murdering one’s mother, murdering one’s father, murdering a perfected one, injuring a Realized One with malicious intent, and causing a schism in the Saṅgha. These are the five acts the tradition treats as immediately catastrophic in their consequences, and they appear here as things a person accomplished in view cannot perform.

AN 1.276 adds a sixth incapacity that belongs with them: dedicating oneself to another teacher. That is not sectarian possessiveness. Somebody who has verified something for themselves has no remaining reason to transfer their trust elsewhere, which is the same logic AN 3.65 applies from the other end.

One Buddha at a time (AN 1.277)

The last entry changes register entirely: two fully awakened Buddhas cannot arise in the same solar system at the same time. This is cosmology rather than psychology, and it belongs to a family of statements about how many of certain unique offices the world can hold at once. The next chapter continues in the same vein.

It is worth noticing what work the claim does and does not do. It says nothing about the number of Buddhas across time — the canon is comfortable with previous Buddhas and with a future one. What it asserts is simultaneity. Later Mahāyāna cosmology, with its innumerable contemporaneous Buddhas in innumerable world-systems, does not so much contradict this as expand the frame in which it is stated: one to a system, but very many systems.

For a reader who finds the cosmological material hard going, the honest thing is to say that it is genuinely a different kind of statement from the nine before it, and that nothing in the practical teaching depends on it.

Reading it as a description, not a standard

There is a predictable way for this chapter to go wrong in a classroom, which is for it to become a checklist by which people measure themselves or, worse, each other. The list is poorly suited to that. It rules out matricide and schism — acts most people were never going to commit anyway — and one perceptual error that nobody can observe in themselves directly.

What it is genuinely useful for is the opposite move: as a description of what awakening is claimed to be. On this account, the first stage of awakening is not an experience, a feeling, or a level of calm. It is a permanent change in what a person is capable of. Any presentation of stream-entry that leaves the person able to do everything they could before, only more peacefully, is not describing what this chapter describes.

Key terms