According fullest credit, however, to the influence of the purely "physical" properties of nature, has man no other relation to his external environment than the utilitarian? The moral influence has been just suggested; the exploitation of this rich vein has for some time past engaged the attention of evolutionary moralists. Our more immediate concern is with the aesthetic influences. And in nature there is beauty as well as utility. Nor is the beauty a by-product of utility; it exists on its own account, and asserts itself in its own right. As Emerson puts it--"it is its own excuse for being." As another writer puts it--"in the beauty which we see around us in nature's face, we have felt the smile of a spiritual Being, as we feel the smile of our friend adding light and lustre to his countenance." Yes, nature is beautiful and man knows it. How great the number and variety of the emotions and intuitions that beauty can stir and foster will be seen in detail hereafter. But beauty is not the only agent in moulding and developing man's character. Nature, as will be shown, is a manifestation of immanent ideas which touch life at every point. Ugliness, for example, has its place as well as beauty, and will be dealt with in due course. So with ideas of life and death, of power and weakness, of hope and despondency--these and a thousand others, immanent in external phenomena, have stimulated the powerful imaginations of the infant race, and still maintain their magic to move the sensitive soul. The wonderful mythological systems of the past enshrine science, philosophy, and poetry-- and they were prompted by physical phenomena. The philosophy and poetry of the present are still largely dependent on the same phenomena. So it will be to the end. That the revelation of Reality is a partial one--that the highest summits are veiled in mists--this is freely granted. But the very fact constitutes in itself a special charm. If what we see is so wonderful, what must that be which is behind! CHAPTER V MYSTIC RECEPTIVITY The general character of the nature-mystic's main contention will now be sufficiently obvious. He maintains that man and his environment are not connected in any merely external fashion, but that they are sharers in the same kind of Being, and therefore livingly related. If this be sound, we shall expect to find that wherever and whenever men are in close and constant touch with nature they will experience some definite sort of influence which will affect their characters and their thoughts. Nor, as will already have been obvious, are we disappointed in this expectation. Let us turn to a somewhat more detailed study of the evidence for the reality and potency of the mystic influence continuously exercised by physical phenomena on man's psychic development.