The most popular book written by Rudolf Steiner, Rosicrucian and Founder of Anthroposophy. How to Know Higher Worlds is also called “A Modern Path of Initiation”, “Knowledge of Higher World’s and It’s Attainment” “How to Attain Knowledge of the Higher Worlds” and “A Way of Initiation”. It covers Steiner’s Anthroposophical ideas of how to unveil and access higher planes of consciousness, spiritual knowledge, and mastery of your own mind and energy. Steiner goes into great detail on the logic, science, metaphysics, etc. behind esoteric and spiritual concepts, and gives the reader knowledge to self initiate into the mysteries, and begin a path of wisdom.