The fundamental doctrine of Manicheism is Dualism--that is to say, the existence of two opposing principles in the world, light and darkness, good and evil--founded, however, not on the Christian conception of this idea, but on the Zoroastrian conception of Ormuzd and Ahriman, and so perverted and mingled with Cabalistic superstitions that it met with as vehement denunciation by Persian priests as by Christian Fathers. Thus, according to the doctrine of Manes, all matter is absolute evil, the principle of evil is eternal, humanity itself is of Satanic origin, and the first human beings, Adam and Eve, are represented as the offspring of devils.[124] Much the same idea may be found in the Jewish Cabala, where it is said that Adam, after other abominable practices, cohabited with female devils whilst Eve consoled herself with male devils, so that whole races of demons were born into the world. Eve is also accused of cohabiting with the Serpent.[125] In the Yalkut Shimoni it is also related that during the 130 years that Adam lived apart from Eve, "he begat a generation of devils, spirits, and hobgoblins."[126] Manichean demonology thus paved the way for the placation of the powers of darkness practised by the Euchites at the end of the fourth century and later by the Paulicians, the Bogomils, and the Luciferians. So it is in Gnosticism and Manicheism that we find evidence of the first attempts to pervert Christianity. The very fact that all such have been condemned by the Church as "heresies" has tended to enlist sympathy in their favour, yet even Eliphas Lévi recognizes that here the action of the Church was right, for the "monstrous gnosis of Manes" was a desecration not only of Christian doctrines but of pre-Christian sacred traditions. 2 THE REVOLT AGAINST ISLAM[127] We have followed the efforts of subversive sects hitherto directed against Christianity and orthodox Judaism; we shall now see this attempt, reduced by gradual stages to a working system of extraordinary efficiency, organized for the purpose of undermining all moral and religious beliefs in the minds of Moslems. In the middle of the seventh century an immense schism was created in Islam by the rival advocates of successors to the Prophet, the orthodox Islamites known by the name of Sunnis adhering to the elected Khalifas Abu Bakr, Omar, and Othman, whilst the party of revolt, known as the Shiahs, claimed the Khalifate for the descendants of Mohammed through Ali, son of Abu-Talib and husband of Fatima, the Prophet's daughter. This division ended in open warfare; Ali was finally assassinated, his elder son Hason was poisoned in Medina, his younger son Husain fell at the battle of Kerbela fighting against the supporters of Othman. The deaths of Hasan and Husain are still mourned yearly by the Shiahs at the Moharram. The Ismailis