12 lectures, Hamburg, May 5-31, 1908 (CW 103) During Pentecost 1908--seven years after he had given the world his book Christianity As Mystical Fact and the first intimation of the consequences of his Christ experience--Rudolf Steiner began his great work of renewing humanity's understanding of the Mystery of Golgotha and its meaning for human and earthly evolution. Accordingly, he turned to the deepest, most spiritual...