What in the meantime would be the fate of sensations that are even now becoming intolerable? Any faculty, mental or physical, however previously developed by evolutional necessities, would have a tendency to dwindle and disappear from the moment that it ceased to be either useful or pleasurable. Continuance of the power to perceive red would depend upon the possible future usefulness of that power to the race. Not without suggestiveness in this connection may be the fact that it represents the lowest rate of those ether-oscillations which produce color. Perhaps our increasing dislike to it indicates that power to distinguish it will eventually pass away—pass away in a sort of Daltonism at the inferior end of the color-scale. Such visual loss would probably be more than compensated by superior coincident specializations of retinal sensibility. A more highly organized generation might enjoy wonders of color now unimaginable, and yet never be able to perceive red,—not, at least, that red whose sensation is the spectral smouldering of the agonies and the furies of our evolutional past, the haunting of a horror innominable, immeasurable,—enormous phantom-menace of expired human pain.
Frisson
Some there may be who have never felt the thrill of a human touch; but surely these are few! Most of us in early childhood discover strange differences in physical contact;—we find that some caresses soothe, while others irritate; and we form in consequence various unreasoning likes and antipathies. With the ripening of youth we seem to feel these distinctions more and more keenly,—until the fateful day in which we learn that a certain feminine touch communicates an unspeakable shiver of delight,—exercises a witchcraft that we try to account for by theories of the occult and the supernatural. Age may smile at these magical fancies of youth; and nevertheless, in spite of much science, the imagination of the lover is probably nearer to truth than is the wisdom of the disillusioned.
We seldom permit ourselves in mature life to think very seriously about such experiences. We do not deny them; but we incline to regard them as nervous idiosyncrasies. We scarcely notice that even in the daily act of shaking hands with persons of either sex, sensations may be received which no physiology can explain.
I remember the touch of many hands,—the quality of each clasp, the sense of physical sympathy or repulsion aroused. Thousands I have indeed forgotten,—probably because their contact told me nothing in particular; but the strong experiences I fully recollect. I found that their agreeable or disagreeable character was often quite independent of the moral relation: but in the most extraordinary case that I can recall—(a strangely fascinating personality with the strangest of careers as poet, soldier, and refugee)—the moral and the physical charm were equally powerful and equally rare. “Whenever I shake hands with that man,” said to me one of many who had yielded to his spell, “I feel a warm shock go all through me, like a glow of summer.” Even at this moment when I think of that dead hand, I can feel it reached out to me over the space of twenty years and of many a thousand miles. Yet it was a hand that had killed....