of its own in preserving the basis of belief in these invisible beings. Disbelief in the very existence of the old gods might be followed by a sceptical spirit that might endanger the new. So the propagandists maintained the existence of native gods, but called them devils. Sometimes wars or intercourse between tribes led to their fusion; the battle between opposing religions was drawn, in which case there would be a compromise by which several deities of different origin might continue together in the same race and receive equal homage. The differing degrees of importance ascribed to the separate persons of the Hindu triad in various localities of India, suggest it as quite probable that Brahma, Vishnu, and Siva signalled in their union the political unity of certain districts in that country. [15] The blending of the names of Confucius and Buddha, in many Chinese and Japanese temples, may show us an analogous process now going on, and, indeed, the various ethnical ideas combined in the christian Trinity render the fact stated one of easy interpretation. But the religious difficulty was sometimes not susceptible of compromise. The most powerful priesthood carried the day, and they used every ingenuity to degrade the gods of their opponents. Agathodemons were turned into kakodemons. The serpent, worshipped in many lands, might be adopted as the support of sleeping Vishnu in India, might be associated with the rainbow ('the heavenly serpent') in Persia, but elsewhere was cursed as the very genius of evil. The operation of this force in the degradation of deities, is particularly revealed in the Sacred Books of Persia. In that country the great religions of the East would appear to have contended against each other with especial fury, and their struggles were probably instrumental in causing one or more of the early migrations into Western Europe. The great celestial war between Ormuzd and Ahriman--Light and Darkness--corresponded with a violent theological conflict, one result of which is that the word deva, meaning 'deity' to Brahmans, means 'devil' to Parsees. The following extract from the Zend-Avesta will serve as an example of the spirit in which the war was waged:-- 'All your devas are only manifold children of the Evil Mind--and the great one who worships the Saoma of lies and deceits; besides the treacherous acts for which you are notorious throughout the seven regions of the earth. 'You have invented all the evil which men speak and do, which is indeed pleasant to the Devas, but is devoid of all goodness, and therefore perishes before the insight of the truth of the wise. 'Thus you defraud men of their good minds and of their immortality by your evil minds--as well through those of the Devas as that of the Evil Spirit--through evil deeds and evil words, whereby the power of liars grows.' [16] That is to say--Ours is the true god: your god is a devil.