The Key to Theosophy by H. P. Blavatsky - is an 1889 book by Helena Blavatsky, expounding the principles of theosophy in a readable question-and-answer manner. It covers Theosophy and the Theosophical Society, Nature of the Human Being, Life After Death, Reincarnation, Kama-Loka and Devachan, the Human Mind, Practical Theosophy and the Mahatmas. The book is an introduction to Theosophical mysticism and esoteric doctrine.Nonviolent activist Mohandas Gandhi spoke of it in his autobiography: This book stimulated in me the desire to read books on Hinduism, and disabused me of the notion fostered by the missionaries that Hinduism was rife with superstition.The purpose of this book is exactly expressed in its title, The Key to Theosophy, and needs but few words of explanation. It is not a complete or exhaustive text-book of Theosophy, but only a key to unlock the door that leads to the deeper study. It traces the broad outlines of the Wisdom Religion, and explains its fundamental principles; meeting, at the same time, the various objections raised by the average Western enquirer, and endeavouring to present unfamiliar concepts in a form as simple and in language as clear as possible. That it should succeed in making Theosophy intelligible without mental effort on the part of the reader, would be too much to expect; but it is hoped that the obscurity still left is of the thought not of the language, is due to depth not to confusion.