Mysticism (Complete Edition) is Underhill's landmark mapping of the mystical life across traditions, organized around a coherent process: awakening, purgation, illumination, the dark night, and union. Combining close readings of Plotinus, Dionysius, Ruysbroeck, Teresa of Avila, John of the Cross, and Boehme with an exacting distinction between genuine mysticism and magic or occultism, she integrates historical, theological, and psychological analysis. The Complete Edition restores her full annotations, case studies, and bibliographies, displaying a supple, humane prose that is both encyclopedic and pastorally alert within an early twentieth century comparative framework. An English lay theologian and retreat leader, Evelyn Underhill (1875-1941) drew on classical studies, Anglican spirituality, and the emerging psychology of religion. Influenced by William James and guided by Baron Friedrich von Hügel, she balanced scholarly rigor with spiritual direction. Her wide reading and personal practice of prayer and contemplation shaped the book's empathetic phenomenology and practical emphasis. This volume is indispensable for theologians, historians of religion, psychologists, and seekers. It provides a lucid grammar for interpreting mystical texts and a reliable guide for practice, without reductionism. Read it to encounter a comprehensive, critically generous account of the mystical path that remains strikingly contemporary. Quickie Classics summarizes timeless works with precision, preserving the author's voice and keeping the prose clear, fast, and readable-distilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.