In a series of 17 lectures, Rudolf Steiner throws new light on the historical background and esoteric meaning of what he refers to as the central event of human and earthly history: the Christ mystery or the Mystery of Golgotha. Basing his commentaries on personal spiritual research, Steiner emphasizes the key nature of the Mystery of Golgotha, through which ...something was accomplished which has to do not with the moral order alone but with the whole world-order in its entirety. This relates to a transformation of the spiritual environment of the earth and a potentially radical change in human consciousness.