On the second of these nectars the Rudras live, with Indra at their head. Truly, the gods do not eat or drink. They are satisfied by merely looking at the nectar.

Sama Veda, Chandogya Upanishad III, VII - Meditation on the Rudras, 1

They retire into that white colour and rise up from that colour.

Sama Veda, Chandogya Upanishad III, VII - Meditation on the Rudras, 2

He who thus knows this nectar becomes one of the Rudras, with Indra at their head; he is satisfied by merely looking at the nectar. He retires into that white colour and again rises up from that colour.

Sama Veda, Chandogya Upanishad III, VII - Meditation on the Rudras, 3

As long as the sun rises in the east and sets in the west, twice as long does it rise in the south and set in the north and just so long does he, like the Rudras, enjoy rulership and sovereignty.

Sama Veda, Chandogya Upanishad III, VII - Meditation on the Rudras, 4

On the third of these nectars the Adityas live, with Varuna at their head. Truly, the gods do not eat or drink. They are satisfied by merely looking at the nectar.

Sama Veda, Chandogya Upanishad III, VIII - Meditation on the Adityas, 1