The story

The second half of the Isha Upanishad begins by unsettling what a careful listener might have concluded from the first. The opening verses praised a life of action held lightly and a vision of the one Self in all beings. Now, from verse nine, the text takes up two paths a seeker might follow, and it declares that each one, followed alone, ends in darkness.

Into blind darkness enter those who worship ignorance, avidya, it says. Into a greater darkness still, as it were, go those who delight in knowledge, vidya. The second line is the shock. A text devoted to knowing says that those devoted to knowledge fare worse. Verse ten adds only that the wise have named one result for the one and another result for the other. So we have heard, the Upanishad says, from the steady ones who explained it to us. The teaching comes down a chain of hearing, and the text places itself inside that chain.

Verse eleven gives the resolution. Whoever knows both together, knowledge and ignorance, crosses death by ignorance and by knowledge reaches the deathless.

The text does not define its terms. A long line of later commentators, Shankara among them, read avidya here as ritual work and vidya as meditation on the deities, so that the verses warn against either one pursued without the other. Whatever the gloss, the shape of the teaching is plain in the words themselves. There are two things that seem opposed. Each of them alone is a trap. Together they carry a person across death and into what does not die.

Verses twelve to fourteen repeat the pattern almost word for word, with a different pair: the unmanifest and the manifest, non-becoming and becoming. Into blind darkness go those who worship the unmanifest. Into greater darkness go those who delight in the manifest. One result is named for the one and another for the other; so we have heard from the steady ones. Whoever knows both together crosses death by the one and gains the deathless by the other.

The repetition is itself the teaching. The Isha refuses to let the listener settle into either half. It does not allow the world of action without the inward search, and it does not allow an inward search that turns away from the world. It has already said, at its very start, that the Lord dwells in all this moving world. A seeker who flees the manifest for the unmanifest has not escaped the problem but halved it.

Then the text changes voice. Until now it has spoken about the seeker. From verse fifteen it speaks as one, in the first person, in prayer. The face of truth, it says, is covered with a golden vessel. O Pushan, nourisher, uncover it, so that I, whose rule of life is truth, may see.

It is one of the great images of the Upanishads. The sun's own splendour is the lid. What hides the truth is not darkness but brilliance: gold, a shining surface that dazzles and so stops the eye. The one who prays does not ask for more light. He asks for less. He calls on Pushan, the lone seer, Yama the controller, Surya, child of Prajapati: spread apart your rays and gather in your blaze. I see the fairest form you have. Then comes the line that turns the whole prayer around. That person there, in the sun, I am he.

A listener who has followed from the first verse is ready for this. If the Self is in all beings, it is in the sun as well. The prayer to see past the golden lid ends by finding the one who prays on the other side of it.

Verse seventeen faces death directly. Let the breath go to the deathless wind; this body ends in ashes. Om. O mind, remember, remember what was done. O mind, remember, remember what was done. The repetition is in the text. It reads as the voice of someone at the edge of life, asking the mind to gather the whole of it before letting go.

Verse eighteen is the last prayer, addressed to fire. O Agni, lead us by the good path to wealth, god who knows every way we have gone. Keep from us the crooked sin. We offer you our fullest words of praise.

The same prayer, from the golden vessel to the plea to Agni, appears in the Brihadaranyaka Upanishad as well. In the Isha it completes a circle. The text began by saying that all this is the Lord's dwelling and that one should wish to live a hundred years doing one's work. It ends with that life over, the body ash and the breath returned to the wind. What is left is one plain request: that the fire which carried every offering should lead the one who made them by the good road.

Figures and teachings in this dialogue

• Teaching: The Deathless Self

Questions to explore

• Why would knowledge alone lead into a deeper darkness than ignorance?
• What is the golden lid over truth's face, and why is it asked to be lifted rather than forced?
• 'That person there — I am he.' What has the one who prays come to see?