But the Aryans grew up and formed themselves into nations, and developed the germs of their religion apart from external influence, and in a land which from the earliest times had belonged to them alone. Their character, their religion, their national life, were their own; and though in after-times these went through distinctive modifications, when the stems of nations that we know, Greeks, Latins, Germans, and the rest, grew out of the Aryan stock, they yet bore amid these changes the memory of a common ancestry. The land in which they dwelt was favourable to the growth of the imaginative faculties, and to that lightness and brightness of nature which afterwards so distinguished the many-minded Greeks, rather than to the slow, brooding character of the Eastern mind. There, down a hundred hillsides and along a hundred valleys trickled the rivulets whose waters were hurrying to swell the streams of the Oxus and the Jaxartes. And each hill and valley had its separate community, joined, indeed, by language and custom to the common stock, but yet living a separate simple life in its own home, which had, one might almost say, its individual sun and sky as well as hill and river. No doubt in such a land innumerable local legends and beliefs sprang up, and these, though lost to us now, had their effects upon the changes which among the many branches of the race the Aryan mythology underwent--a mythology which before all others is remarkable for the endless diversity of its legends, for the infinite rainbow-tints into which its essential thoughts are broken. [Sidenote: Sky-and sun-gods.] Despite these divergences, the Aryans had a common chief deity--the sky, the ‘fair heaven.’ This, the most abstracted and intangible of natural appearances, at the same time the most exalted and unchanging, seemed to them to speak most plainly of an all-embracing deity. And though their minds were open to all the thousand voices of nature, and their imaginations equal to the task of giving a personality to each, yet none, not even the sun himself, imaged so well their ideal of a highest All-Father as did the over-arching heaven.