4 lectures, Berlin, February 3-7. 1913 (CW 144) In this concise study, Rudolf Steiner sketches the evolution of the mysteries, from ancient Persia through Egypt and Greece to the present Christian era. He traces the line of initiates from the Egyptian divinities Isis and Osiris to Moses and to King Arthur's Round Table and the Holy Grail in the twelfth century. Steiner focuses on the process of initiation in historical...