Mysteries, Religious — Audiobooks
Le grand secret
by Maurice Maeterlinck
Christianity as Mystical Fact, and the Mysteries of Antiquity
by Rudolf Steiner
Mysteria : History of the secret doctrines and mystic rites of ancient religions and medieval and modern secret orders
by Otto Henne am Rhyn
Pythagoras and the Delphic mysteries
by Edouard Schuré
Prolegomena to the study of Greek religion
by Jane Ellen Harrison