adjunct sets of meaning: सर्वं ह्येतद् ब्रह्म sarvam hyetad brahma - "this brahman is the Whole" ब्रह्मायमात्मा brahma ayam atma - "brahman is ātman" ब्रह्म सोऽयमात्मा brahman sah ayam atman - "brahman is this (very) self" The Mandukya Upanishad repeatedly states that Om is ātman, and also states that turiya is ātman. The Mandukya Upanishad forms the basis of Gaudapada's Advaita Vedanta, in his Mandukya Karika. See also Advaita Vedanta Jiva Monism Soham (Sanskrit) Vakya Vritti Ajativada I Am that I Am Al-Hallaj Notes References Sources Printed sources Web-sources Further reading S. Radhakrishnan: The Principal Upanishads External links Chandogya Upanishad Chandogya Upanishad Swami Sivananda, Tat Tvam Asi, Right Significance of TAT TVAM ASI Ram Chandran , tattvam asi Mahavakyas माण्डूक्योपनिषत्, Mandukhya Upanishad – Sanskrit Text, sanskritdocuments.org, Encoded by M. Giridhar giridhar at chemeng.Isc.ernet.in Proofread by John Manetta Lecture on Atman by Swami Sarvapriyananda (Video) Mandukhya Upanishad with Gaudapada Karika and Sankara Bhashya-Swami Nikhilananda Tattva Bodha-Swami Gurubhaktananda Hindu philosophical concepts Advaita Vedanta pl:Mantra#Mahawakja