Kena Upanishad 4

She replied: 'It is Brahman. It is through the victory of Brahman that you have thus become great.' After that he knew that it was Brahman.

Therefore these Devas, viz. Agni, Vâyu, and Indra, are, as it were, above the other gods, for they touched it (the Brahman) nearest.

And therefore Indra is, as it were, above the other gods, for he touched it nearest, he first knew it.

This is the teaching of Brahman, with regard to the gods (mythological): It is that which now flashes forth in the lightning, and now vanishes again.

And this is the teaching of Brahman, with regard to the body (psychological): It is that which seems to move as mind, and by it imagination remembers again and again.

That Brahman is called Tadvana, by the name of Tadvana it is to be meditated on. All beings have a desire for him who knows this.

The Teacher: 'As you have asked me to tell you the Upanishad, the Upanishad has now been told you. We have told you the Brâhmî Upanishad.

'The feet on which that Upanishad stands are penance, restraint, sacrifice; the Vedas are all its limbs, the True is its abode.

'He who knows this Upanishad, and has shaken off all evil, stands in the endless, unconquerable world of heaven, yea, in the world of heaven.'