The circumstances attending the birth of these hero-gods have great similarity. As a rule, each is a twin or one of four brothers born at one birth; very generally at the cost of their mother's life, who is a virgin, or at least had never been impregnated by mortal man. The hero is apt to come into conflict with his brother, or one of his brothers, and the long and desperate struggle resulting, which often involved the universe in repeated destructions, constitutes one of the leading topics of the myth-makers. The duel is not generally--not at all, I believe, when we can get at the genuine native form of the myth--between a morally good and an evil spirit, though, undoubtedly, the one is more friendly and favorable to the welfare of man than the other. The better of the two, the true hero-god, is in the end triumphant, though the national temperament represented this variously. At any rate, his people are not deserted by him, and though absent, and perhaps for a while driven away by his potent adversary, he is sure to come back some time or other. The place of his birth is nearly always located in the East; from that quarter he first came when he appeared as a man among men; toward that point he returned when he disappeared; and there he still lives, awaiting the appointed time for his reappearance. Whenever the personal appearance of this hero-god is described, it is, strangely enough, represented to be that of one of the white race, a man of fair complexion, with long, flowing beard, with abundant hair, and clothed in ample and loose robes. This extraordinary fact naturally suggests the gravest suspicion that these stories were made up after the whites had reached the American shores, and nearly all historians have summarily rejected their authenticity, on this account. But a most careful scrutiny of their sources positively refutes this opinion. There is irrefragable evidence that these myths and this ideal of the hero-god, were intimately known and widely current in America long before any one of its millions of inhabitants had ever seen a white man. Nor is there any difficulty in explaining this, when we divest these figures of the fanciful garbs in which they have been clothed by the religious imagination, and recognize what are the phenomena on which they are based, and the physical processes whose histories they embody. To show this I will offer, in the most concise terms, my interpretation of their main details. The most important of all things to life is _Light_. This the primitive savage felt, and, personifying it, he made Light his chief god. The beginning of the day served, by analogy, for the beginning of the world. Light comes before the sun, brings it forth, creates it, as it were. Hence the Light-God is not the Sun-God, but his Antecedent and Creator.