Not only does this book present the current state of research in esotericism, but it also explores three main aspects of the field from the Renaissance to the twentieth century. Previously published in French and now available in English for the first time, Theosophy, Imagination. Tradition traces the history of the theosophical current, its continuity and shifts, against the background of social and cultural events. The book also covers the Paracelsian course, the romantic Philosophies of Nature and the Occultist movement. The book provides glimpses into the notions and practices of the so-called "active" and "creative" imagination, and questions how they serve as a bridge into certain kinds of mystical experience. It also examines the place that the notion of "tradition" occupies in some major exponents of western esotericism.