The main purpose of these lectures was to outline Steiners Christ-centered spiritual science in contrast to the more Eastern orientation of Theosophy. He carefully connected the essence of spiritual science to the role of the Christ in human evolution, as well as to the Rosicrucian and Christian mystery traditions, the primary carriers of the esoteric Christian stream. To accomplish this, Steiner presented the roots of Christianity in the ancient mysteries and in the evolution of the whole universe itself.