According to Luke: The Gospel of Compassion and Love Revealed (CW 114)

10 lectures, Basel, September 15-26, 1909 (CW 114)   Rudolf Steiner was born with clairvoyant capacities, but it was not until he was forty that he could connect his inner experiences with Jesus Christ. After that “solemn festival of knowledge,” as he described it in his Autobiography, Steiner received ceaseless revelations about the significance of the Christ’s incarnation. For the next twenty years, he spoke of the hidden background to all four gospels, the Book of Revelations, and even what he called the Fifth Gospel, read directly from the spirit worlds.    These lectures present the most accessible and illuminating of Steiner’s revelations about the significance of the Christ for the spiritual development of humanity. He discusses the link between the Buddha and the Christ, which unites Buddhism and Christianity—not in theory but in the spiritual activities of those two beings. Steiner also describes the relationship between the Greek Mystery traditions and the Mystery of Golgotha