Eons

Reading guide

The teaching in one sentence

A world-cycle has four phases and none of them can be counted.

The four phases

Saṁvaṭṭa, contracting; the fully contracted state; vivaṭṭa, expanding; the fully expanded state. Two processes and two conditions, alternating.

The picture behind it is a universe that runs down and builds back up, indefinitely, with no first term. The Buddhist cosmology has no creation event, and this discourse assumes that without arguing it: the list is a cycle, and a cycle has no beginning written into it.

The word kappa covers the whole four-phase cycle, and it is the unit the collection uses for the largest spans it names. AN 4.123 gave the gods of the Divinity’s host a lifespan of one kappa and the gods of abundant fruit five hundred, which means that discourse was measuring divine lives in complete universes.

Reading AN 4.156 after AN 4.123 changes the earlier figure considerably. Five hundred eons is not five hundred long times. It is five hundred full contractions and expansions of everything.

Asaṅkhyeyya

The word Sujato renders ‘uncountable period’ is asaṅkhyeyya, not to be reckoned. It is a negation of the ordinary word for counting, and it is the discourse’s whole subject.

What follows each phase is not an estimate but a formula of escalating failure: not easy to calculate how many years — nor hundreds — nor thousands — nor hundreds of thousands. The sentence climbs and gives up at each rung.

That is a rhetorical shape rather than a numerical claim, and it works. A large number can be held; a number that defeats four attempts at approximation cannot.

It is worth noticing what the discourse could have said and does not. It does not say the phases are infinite, or eternal, or beyond time. It says they are not easy to count, which is a claim about counting.

Against the impulse to speculate

This is a cosmological discourse in a collection that elsewhere warns against exactly this subject. AN 4.77 lists four things that should not be speculated about, and speculation about the world is one of them, on the grounds that anyone who tries will get nothing but madness and vexation.

The two discourses are compatible, but only just, and the reconciliation is worth making explicit. AN 4.156 does not speculate. It gives a structure and refuses to fill in the quantities, which is close to the opposite of the activity AN 4.77 prohibits.

A tradition can hold both positions: here is the shape of the world, and do not try to work out the numbers. What it cannot hold, and does not attempt, is a detailed chronology.

The later tradition did attempt one, at great length. That material is not in this discourse, and a reader meeting the elaborate Abhidharma cosmologies should know that the canonical statement here is four phases and a refusal.

What a figure like this is for

The practical function of an uncountable span in this collection is comparative, and the comparison is almost always with the length of a life.

The Fours use it that way repeatedly. AN 4.119 named birth, old age, sickness, and death as the four unavoidable perils. AN 4.123 put an ordinary person in a divine realm for an eon and then sent them to a bad destination. In both cases the scale is doing work: it makes any particular life small.

Used carelessly that produces fatalism, and the collection is aware of the risk. Its answer is consistent — the same discourses that give the vast spans also insist that what happens next is decided by what is done now.

AN 4.156 gives the scale without the moral. It is the raw material, and the neighboring discourses are where it is put to use.

Where it sits

Sixth of the chapter’s ten, and the hinge. Everything before it is a list of faculties or powers; everything after it is substantial and concrete.

There is no connection between this discourse and the five before it except the number four. Nor is there any between it and the four that follow.

AN 4.157 comes next with two kinds of illness and four for those who have gone forth, and it is one of the sharpest things in the Fours.

Key terms