Such are the leading doctrines of Natural Theology of primitive man both in the old and new continent. They arise from the operations of the human mind considering the fitness of things.
Just as we have in Comparative Anatomy the structure of different animals examined, and their identities and differences set forth, thereby establishing their true relations; just as we have in Comparative Physiology the functions of one organic being compared with those of another, to the end that we may therefrom deduce their proper connexions, so, from the mythologies of various races of men, a Comparative Theology may be constructed. [Sidenote: Course of Comparative Theology.] Through such a science alone can correct conclusions be arrived at respecting this, the most important of the intellectual operations of man--the definite process of his religious opinions. But it must be borne in mind that Comparative Theology illustrates the result or effect of the phase of life, and is not its cause.
[Sidenote: Corrections of anthropocentric ideas.] As man advances in knowledge he discovers that of his primitive conclusions some are doubtless erroneous, and many require better evidence to establish their truth incontestably. A more prolonged and attentive examination gives him reason, in some of the most important particulars, to change his mind. He finds that the earth on which he lives is not a floor covered over with a starry dome, as he once supposed, but a globe self-balanced in space. The crystalline vault, or sky, is recognized to be an optical deception. It rests upon the earth nowhere, and is no boundary at all; there is no kingdom of happiness above it, but a limitless space, adorned with planets and suns. Instead of a realm of darkness and woe in the depths on the other side of the earth, men like ourselves are found there, pursuing, in Australia and New Zealand, the innocent pleasures and encountering the ordinary labours of life. By the aid of such lights as knowledge gradually supplies, he comes at last to discover that this, our terrestrial habitation, instead of being a chosen, a sacred spot, is only one of similar myriads, more numerous than the sands of the sea, and prodigally scattered through space.