Towards the end of the second century after Muhammad, Babek in Persia taught the transmigration of souls and communism. His followers, named Khoramiyyah, long successfully resisted the Caliph's troops. He claimed that the soul of an ancient law-giver named "Bod" had passed into him, which meant perhaps that he wished to pass for a "Buddha." It is well known that Shiite teachers were especially active in Persia. In the apotheosis of Ali, as well as in the cases of Abu Muslim, we find an assertion of the ideas peculiar to the Persians in pre-Islamic times. The infusion or indwelling of the Godhead in man as with the Hindu Avatars was also popular, and widely spread in Persia. In Bagdad, from the time of the early Abbasides, the Persians had exercised great influence. Shiahs were able to profess their views freely under the tolerant or rather religiously indifferent Caliph Mamoun. Bagdad early harboured within its walls a number of communities imbued with Shiah doctrine, and the Persian conception of God silently, but widely prevailed. Hellaj, educated in the orthodox Sunni school of Junaid, which, through its laying stress on the idea of love to God, possessed rather a mystic than dogmatic character, allowed himself to be carried away by his passionate temperament into not only preaching, but practically applying to himself the above-mentioned doctrines, which though known to many, had been discreetly veiled in reserve. When once the populace have been prepared for a new idea, the mere expression of it is sufficient to act as a spark on tinder. The fatal word was spoken by Hellaj; the authorities did their duty, seized the daring innovator and put him to death in the cruel fashion of the time. But the word once spoken had been borne on the winds in all directions, and the execution of Hellaj gave a powerful impulse to the spread of his doctrine. There are periods in the lives of some nations when the longing for a martyr's crown becomes epidemic. A few years after the execution of Hellaj, a man of the people, Ibn Aby Azkyr, from the same village, Shalmaghan, where Hellaj had spent his youth, gave himself out as an incarnation of the Godhead. He was put to death with several of his followers under the reign of the Caliph Radhi, 933 A.D. A century after Hellaj an Egyptian, Ismail Darazy, from whom the Druses derive their name, proclaimed the Fatimite Caliph Hakim to be an incarnation. How great was the influence exercised in general by those ideas for which Hellaj died a martyr's death we learn most clearly from the pages of Ghazzali, who wrote not quite two hundred years later. He says: