Joseph Campbell
Author: Joseph Campbell
Publisher: Joseph Campbell Foundation (2011)

The leading aim of all Oriental mystic teaching, consequently, might be described as that of enabling us to shift our focus of self-identification from, so to say, this light bulb to its light; from this mortal person to the consciousness of which our bodies are but the vehicles. That, in fact, is the whole sense of the famous saying of the Indian Chhandogya Upanishad, tat tvam asi, 'Thou art That,' 'You yourself are that undifferentiated universal ground of all being, all consciousness, and all bliss.