So she proceeds in her disposition to pay attention to objects “of a certain class,” and totally to ignore others. Things progress from a “predominantly mechanical to a predominantly teleological determination.” Pure instincts, the original furnishings of the flat, become modified by experience and rational reflection. Dr. Watson[46] says “there is no mystery in building the human being into as complicated an organism as he is.” Avowed mechanists are never tired of telling us this, and they are right. There is no mystery at all--save in Psyche herself. And she is all mystery. I would no sooner think of trying to explain her than I would think of explaining myself. For she _is_ myself. And she and I, like Drs. Watson and McDougall, are totally inexplicable. Not even we understand in the least. What is explanation? Let us explain a sunset. It is caused, we will say, by the earth turning upon its axis, so that the sun, which at noon was overhead, seems to sink to the horizon. Actually, it is the horizon which rises and obscures the sun--no matter. The rays which were perpendicular, become slant. They encounter drops of water in the atmosphere--encounter too the laws of refraction, and break up into gorgeous yellows and purples. Follow the rays in one direction, and you come to the “rods” in the eye; the optic nerve; the brain; and to Something which translates the result into the color sensations, and these, perhaps, into a fusion of wonder, curiosity and submission--and these into a lot of theories. Follow the rays in the other direction, and you arrive at the sun, and are tempted to construct various theories of light. Whence came the sun? Whence came these primal particles or protons of which it is theoretically composed? We know of the sun’s existence only from what Psyche perceives--through her senses or otherwise. Imagine that neither Psyche nor the sun exists. Start now and try to imagine yourself creating either or both. Why, you cannot even make a beginning. You have nothing to imagine with. You are lost between the impossibility of existence and the impossibility of non-existence. Did you ever stop to think how utterly impossible is either of these two opposite impossibilities? And yet--here we are!