So, whether it be the heart as the primal fountain of blood, or the liver as the great receptacle of blood, or the blood itself in its supposed outflowing from the heart through the liver, that is made prominent in the rites and teachings of primitive peoples, the root-idea is still the same,--that “as to the life of all flesh, the blood thereof is all one with the life thereof;”[701] and that as a man is in his blood, so he is in his nature; that his “good blood” or “his bad blood,” his “hot blood” or his “cold blood,” will be evidenced in his daily walk; for that which shows out in his outer life is “in the blood” which is his inner life; and that in order to a change of his nature there must in some way be a change of his blood. Hence, the universal outreaching of the race after new blood which is new life. Hence, the provisions of God for new life through that blood which is the Life. TRANSMIGRATION OF SOULS. A belief in the transmigration of souls, from man to the lower animals, and _vice versâ_, has been found among various peoples, in all the historic ages. The origin of this belief has been a puzzling question to rationalistic myth-students. Starting out, as do most of these students, with the rigid theory that man worked himself slowly upward from the lowest savagery, without any external revelation, they are confronted with primitive customs on every side which go to show a popular belief in soul-transmigration, and which they must try to account for within the limits of their unproven theory. The result is, that they first presuppose some conception in the primitive man’s mind of spiritual things, and then they conveniently refer all confusing facts to that presupposed conception. “Animism” is one of the pet names for this resolvent of grave difficulties. And when “Animism” is supplemented by “Fetishism,” “Zoolatry,” and “Totemism,” the requisite number of changes is secured for the meeting of any number of perplexing facts in the religious belief of primitive man everywhere.