The resemblance of the American Indians to each other, however, is not more conspicuous in anything than in their religious opinions. They seem to have no well-defined creeds: yet there are very few but profess a faith in some sort of First Cause — a Great Spirit, a Master of Life, who rules the destinies of the world. Though the different nations have not always typified their deity by the same objects, yet by far the greater number seem to have fixed upon the sun as the fit object of their adoration.

Commerce of the Prairies (1831–1839), Chapter 28 Aborigines Of America