Let us pass from generalities to the actual history of Western civilisation. In an age when scattered ritual, local faiths--tribal solutions of cosmic problems--were destroying each other by mere contact and fusion, an event occurred which in the brief record of man's still incipient civilisation may be regarded as unique. A life was lived in which the loftiest response which man's need of moral guidance had ever received was corroborated by phenomena which have been widely regarded as convincingly miraculous, and which are said to have culminated in a Resurrection from the dead. To those phenomena or to that Resurrection it would at this point be illegitimate for me to refer in defence of my argument. I have appealed to Science, and to Science I must go;--in the sense that it would be unfair for me to claim support from that which Science in her strictness can set aside as the tradition of a pre-scientific age. Yet this one great tradition, as we know, has, as a fact, won the adhesion and reverence of the great majority of European minds. The complex results which followed from this triumph of Christianity have been discussed by many historians. But one result which here appears to us in a new light was this--that the Christian religion, the Christian Church, became for Europe the accredited representative and guardian of all phenomena bearing upon the World Unseen. So long as Christianity stood dominant, all phenomena which seemed to transcend experience were absorbed in her realm--were accounted as minor indications of the activity of her angels or of her fiends. And when Christianity was seriously attacked, these minor manifestations passed unconsidered. The priests thought it safest to defend their own traditions, their own intuitions, without going afield in search of independent evidence of a spiritual world. Their assailants kept their powder and shot for the orthodox ramparts, ignoring any isolated strongholds which formed no part of the main line of defence. Meantime, indeed, the laws of Nature held their wonted way. As ever, that which the years had once brought they brought again; and every here and there some marvel, liker to the old stories than any one cared to assert, cropped up between superstition on the one hand and contemptuous indifference on the other. Witchcraft, Swedenborgianism, Mesmerism, Spiritism--these especially, amid many minor phenomena, stood out in turn as precursory of the inevitable wider inquiry. A very few words on each of these four movements may suffice here to show their connection with my present theme.