This book investigates the complex and often hidden role of Eros and sexuality within the history of Western esotericism. Hanegraaff, a leading scholar in the field, examines how various esoteric traditions have conceptualized, utilized, and suppressed erotic energies and desires throughout centuries of Western intellectual and spiritual development. The work draws upon a wide range of primary sources, including alchemical texts, grimoires, Rosicrucian writings, and the works of influential esoteric thinkers, to construct a nuanced argument about the persistent, yet frequently veiled, presence of sexuality in esoteric thought and practice.

This scholarly work is recognized for its rigorous academic approach to a sensitive and often overlooked aspect of Western esotericism. Hanegraaff's extensive research and critical analysis provide a comprehensive overview of how sexuality has been integrated, debated, and concealed within various esoteric traditions. The book is considered an important contribution to the study of religious history and sexuality studies, offering deep insights into the complex interplay between spiritual aspirations and erotic drives.