This is the first systematic treatment of esotericism to appear in English. Here is also a historical survey, beginning with the Alexandrean Period, of the various esoteric currents such as Christian Kabbalah, Theosophy, Alchemy, Rosicrucianism, and Hermeticism. Common characteristics of these currents are the notion of universal interdependency and the experience of spiritual transformation. The author establishes a rigorous methodology; provides...