William Walker Atkinson (1862-1932) was an American merchant, attorney, author and publisher famous for being an occultist and pioneer of the New Thought movement. A prolific writer, he produced over 100 books on various subjects during his lifetime. This particular volume contains information on the elementary principles of the Yogi Philosophy and Oriental Occultism that will be of utility to both amateurs and more advanced students alike. Contents include: "The First Three Principles", "The Mental Principles", "The Spiritual Principles", "The Human Aura", "Thought Dynamics", "Telepathy, Clairvoyance, Etc.", "Human Magnetism", "Occult Therapeutics", "Psychic Influence", "The Astral World", "Beyond the Border", "Spiritual Evolution", "Spiritual Cause and Effect", etc. Many vintage books such as this are becoming increasingly scarce and expensive. It is with this in mind that we are republishing this volume now in an affordable, modern, high-quality edition complete with a specially-commissioned new introduction on Hatha yoga.