brought him all this trouble. There are no maladies which cannot be assigned to some influence of this sort. Thus the power of souls is increased by all that men attribute to them, and in the end men find themselves the prisoners of this imaginary world of which they are, however, the authors and the models. They fall into dependence upon these spiritual forces which they have created with their own hands and in their own image. For if souls are the givers of health and sickness, of goods and evils to this extent, it is wise to conciliate their favour or appease them when they are irritated; hence come the offerings, prayers, sacrifices, in a word, all the apparatus of religious observances.[101] Here is the soul transformed. From a simple vital principle animating the body of a man, it has become a spirit, a good or evil genius, or even a deity, according to the importance of the effects with which it is charged. But since it is death which brought about this apotheosis, it is to the dead, to the souls of ancestors, that the first cult known to humanity was addressed. Thus the first rites were funeral rites; the first sacrifices were food offerings destined to satisfy the needs of the departed; the first altars were tombs.[102] But since these spirits were of human origin, they interested themselves only in the life of men and were thought to act only upon human events. It is still to be explained how other spirits were imagined to account for the other phenomena of the universe and how the cult of nature was subsequently formed beside that of the ancestors.