To sum up, there are four main currents that flow together in the Gilgamesh Epic even in its old Babylonian form: (1) the adventures of a mighty warrior Enkidu, resting perhaps on a faint tradition of the conquest of Amurru by the hero; (2) the more definite recollection of the exploits of a foreign invader of Babylonia by the name of Gilgamesh, whose home appears likewise to have been in the West; [124] (3) nature myths and didactic tales transferred to Enkidu and Gilgamesh as popular figures; and (4) the process of weaving the traditions, exploits, myths and didactic tales together, in the course of which process Gilgamesh becomes the main hero, and Enkidu his companion. Furthermore, our investigation has shown that to Enkidu belongs the episode with the woman, used to illustrate the evolution of primitive man to the ways and conditions of civilized life, the conquest of Huwawa in the land of Amurru, the killing of lions and also of the bull, while Gilgamesh is the hero who conquers Erech. Identified with the sun-god, the nature myth of the union of the sun with the earth and the subsequent separation of the two is also transferred to him. The wanderings of the hero, smitten with disease, are a continuation of the nature myth, symbolizing the waning vigor of the sun with the approach of the wintry season. The details of the process which led to making Gilgamesh the favorite figure, to whom the traits and exploits of Enkidu and of the sun-god are transferred, escape us, but of the fact that Enkidu is the _older_ figure, of whom certain adventures were set forth in a tale that once had an independent existence, there can now be little doubt in the face of the evidence furnished by the two tablets of the old Babylonian version; just as the study of these tablets shows that in the combination of the tales of Enkidu and Gilgamesh, the former is the prototype of which Gilgamesh is the copy. If the two are regarded as brothers, as born in the same place, even resembling one another in appearance and carrying out their adventures in common, it is because in the process of combination Gilgamesh becomes the _reflex_ of Enkidu. That Enkidu is not the figure created by Aruru to relieve Erech of its tyrannical ruler is also shown by the fact that Gilgamesh remains in control of Erech. It is to Erech that he returns when he fails of his purpose to learn the secret of escape from old age and death. Erech is, therefore, not relieved of the presence of the ruthless ruler through Enkidu. The "Man of Anu" formed by Aruru as a deliverer is confused in the course of the growth of the Epic with Enkidu, the offspring of Ninib, and in this way we obtain the strange contradiction of Enkidu and Gilgamesh appearing first as bitter rivals and then as close and inseparable friends. It is of the nature of Epic compositions everywhere to eliminate unnecessary figures by concentrating on one favorite the traits belonging to another or to several others.