How much do we really understand about ancient Hermeticism? Review of Wouter J. Hanegraaff’s ‘Hermetic Spirituality and the Historical Imagination’ — Hermetic Spirituality and the Historical Imagination: Altered States of Knowledge in Late Antiquity by Wouter J. Hanegraaff, Cambridge University Press, 2022, 400 pp., hardcover, $135.00. Hermeticism is the ever-elusive philosophy. Since late antiquity, following a jagged and indirect path, the amalgam of Greek-Egyptian thought has promised seekers a whisper of…