The Upanishads, Part 2 (SBE15), by Max Müller, , at sacred-texts.com
Harih, Om! May it (the Brahman) protect us both! May it enjoy us both! May we acquire strength together! May our knowledge become bright! May we never quarrel! Peace! peace! peace 1!
Bhrigu Vâruni went to his father Varuna, saying:
Sir, teach me Brahman.' He told him this, viz. Food, breath, the eye, the ear, mind, speech.
Then he said again to him: 'That from whence these beings are born, that by which, when born, they live, that into which they enter at their death, try to know that. That is Brahman.'
He performed penance. Having performed penance--
64:1 The same paragraph, as before (II, 1), occurs at the end of the Katha-upanishad, and elsewhere.