Of all the heavenly bodies, the sun exerted the most obvious effect upon the earth; the sun brought day and night, summer and winter; his rays lured growing things from mother earth and so gave sustenance to mankind. But to the ancient peoples of the Orient the sun was also often a baneful power; he could destroy as well as give life. Therefore, the ancients came to look upon the sun as a great and powerful god to be worshipped and propitiated by men. And if the sun was such a power, it was natural to believe that all the other bright orbs of the sky were lesser divinities who exercised more limited powers on the earth. From this beginning, based, as we have seen, on a germ of fact, by the power of his imagination and credulity, man extended more and more the powers of these sidereal divinities, attributing to their volition and influence all the most insignificant as well as the most important terrestrial events. And if the heavenly bodies, by revolving about the earth in ceaseless harmony, effected the recurrence of day and night and of the seasons, and if their configurations were responsible for the minutest events in nature, was it not natural to suppose that, besides affecting man thus indirectly, they also influenced him directly and were responsible for his conduct and for the very qualities of his mind and soul? Perhaps the astonishing variety of the influences that the celestial bodies, from ancient until modern times, were supposed to exercise over the world and the life of mankind can be accounted for by imagining some such process of thought to have been involved in the beginnings of astrology. It was but a step from faith in stellar influence on our earth to the belief that, as the heavenly movements were governed by immutable laws, so their influence upon the world would follow certain laws and its effects in the future could be determined as certainly as could the coming revolutions and conjunctions of the stars. Out of this two-fold belief was evolved a complex system of divination, the origin of which was forgotten as men, believing in it, invented reasons for believing, pretending that their faith was founded on a long series of observations. The Chaldeans believed that in discovering the unceasing regularity of the celestial motions, they had found the very laws of life and they built upon this conviction a mass of absolutely rigid dogmas. But when experience belied these dogmas, unable to realize the falsity of their presuppositions and to give up their faith in the divine stars, the astrologers invented new dogmas to explain the old ones, thus piling up a body of complicated and often contradictory doctrines that will ever be to the student a source of perplexity and astonishment.