The Pocket Library of Spiritual Wisdom is an exciting new book series of original contributions by Rudolf Steiner to human knowledge from metaphysical dimensions of reality normally hidden from everyday consciousness. With his philosophical and scientific training, Steiner brought a new systematic discipline to the field of spiritual research, as well as fully conscious methods and comprehensive results. These books highlight samples of his work with excerpts from his many talks and writings on some of the most fascinating themes in contemporary spiritual research. They are easy-to-read, accessible texts with helpful introductions, commentary, and notes. Topics in this volume include: The Sun Initiation of the Druid Priests and their Moon Science The Mysteries of Ancient Ireland Celtic Christianity - the Heritage of the Druids Teachings of the Mysteries - the Spirit in Nature The Great Mysteries - the Mystery of Christ The Function of the Standing Stones Spiritual Imaginations