It was at this compromise that paganism stopped when it reached the term of its evolution. Oriental dualism imposed on it its final formula. It no longer admitted, like the ancients, that all the dead must go down from the grave into immense hollows dug in the bowels of the earth, and it no longer made the Elysian Fields and Tartarus two contiguous domains of the kingdom of Pluto. Nor did it transport them both, side by side, as the pagan theologians of the beginning of our era would have done, to the atmosphere and the starry spheres. It separated them radically, cutting the abode of the souls into two halves, of which it placed one in the luminous sky and the other in subterranean darkness. This was also the conception which, after some hesitation, became generally accepted by the Church, and which for long centuries was to remain the common faith of all Christendom. III CELESTIAL IMMORTALITY The astral religion which became predominant in the Roman Empire may be considered as an intermediary, a connecting link, between the old anthropomorphic paganism and the Christian faith. Instead of moral—or, if you prefer, immoral—beings, stronger than man but subject to all the passions of man, it taught the adoration of the heavenly powers who act on nature, and so led mankind to the worship of the Power who is beyond the heavens. This influence of the astral cults of the East can be clearly perceived in the evolution of the ideas as to future life, and this above all constitutes the historical importance of the subject which I venture to treat in this lecture.