Stanislav Grof

 "In the ancient Indian Upanishads, the answer to the question “Who am I?” is “Tat tvam asi.” This succinct Sanskrit sentence means literally: “Thou art That,” or “You are Godhead.” It suggests that we are not namarupa—name and form (body/ego)t that our deepest identity is with a divine spark in our innermost being (Atman) that is ultimately identical with the supreme universal principle (Brahman). And Hinduism is not the only religion that has made this discovery. The revelation concerning the identity of the individual with the divine is the ultimate secret that lies at the mystical core of all great spiritual traditions. The name for this principle could thus be the Tao, Buddha, Cosmic Christ, Allah, Great Spirit, Sila, and many others."