Book excerpt: Based on the author's experience of the suprasensory being behind spiritual science (Anthroposophy), this volume is the culmination of Sergei Prokofieff's twenty-five years of work on Rudolf Steiner's spiritual impulse. He shows that the being Anthroposophia is not merely a poetic image or an abstract concept, but an actual spiritual entity who works in the higher worlds to benefit earthly evolution and bring to humanity "the new revelation of the heavenly Sophia, the divine wisdom." In the first part of the book, Prokofieff describes the path that led him to experience the being Anthroposophia--a path that is clearly outlined so that it can be followed by the reader as well. In the second part, beginning with Steiner's relatively few statements on the subject, the author considers the position of the living Anthroposophia in the cosmic hierarchy--specifically her relationship to Christ, to the heavenly Sophia, and the to Archangel Michael. Finally available in paperback, this work will be of special interest to all those who have a close connection to Rudolf Steiner's Anthroposophy.