"In part one, Carl Unger outlines and unfolds one of Rudolf Steiner's most important works: Theosophy: an Introduction to the Spiritual Processes iin Human Life and in the Cosomos (CW 9) ... In part two, the author guies the reader through the essential pronciples that underlay anthroposophic Spiritual Science. In his foreword to an earlier edition, Alan Howard wrote, '... though not the only work ... is the essence of what he did in this field."-- Back cover.