How to Attain Knowledge of the Higher Worlds

How to Attain Knowledge of the Higher Worlds: The Way of Initiation is a theosophy book by Rudolf Steiner, an Austrian philosopher and clairvoyant. In this treatise no advice is given and no statement made which is not based on the personal experience of the author, who is, in the truest sense, both a mystic and an occultist, and his two natures are fused together.