Unlike previous purely historical explorations of the Jewish esoteric tradition, The Secret Doctrine of the Kabbalah resurrects this ancient body of knowledge to reveal eternal truths that can have a profound and positive impact on contemporary spirituality. New experimental methods of practicing Hebraic sacred science are explored that explain as never before the meaning of the central cosmological diagram of the entire Western esoteric tradition -- the kabbalistic Tree of Life. Leet shows that the Kabbalah and its central diagram enshrine a key to the purpose of the cosmos, a key that has vast implications for modern physics and cosmology. Copyright (C) Muze Inc. 2005. For personal use only. All rights reserved.