Mahavakyas
The Mahavakyas - Great Utterances ‘prajnanam Brahma (‘Consciousness is Brahman’), from Aitareya Upanishad, reveals the nature of the Self; ‘aham brahmasmi’ (‘I am Brahman’), which is found in the Brihadaranyaka Upanishad, reveals the source of the enquiry; ‘tat tvam asi’ (‘That Thou Art’) is found in the Chandogya Upanishad; this is the statement Guru Ramana reiterates again and again. ‘ayam Atma brahma’ (‘This Atman is Brahman’), this is found in the Mandukya Upanishad; this identifies our very Being with Brahman.