Taittiriya Upanishad
2 quotes
Biography
The Taittiriya Upanishad is a Vedic era Sanskrit text, embedded as three chapters (adhyāya) of the Yajurveda. It is a mukhya Upanishad, and likely composed about 6th century BCE.
"Brahman is OṂ. This whole world is OṂ."
"After he had perceived this, he went up to his father, Varuṇa, once again and said: "Sir, teach me brahman.""