While the Vedas look outward in reverence and awe of the phenomenal world, the Upanishads look inward, finding the powers of nature only an expression of the more awe-inspiring powers of human consciousness.

A. E. George Russell(1867 -1935)

"The Upanishads contain such godlike fullness of wisdom on all things that I feel the authors must have looked with calm remembrance back through a thousand passionate lives, full of feverish strife for and with shadows, ere they could have written with such certainty of things which the soul feels to be sure."