In the present connection, then, the chief interest of the work of Freud and Jung on infantile phenomena associated with sex, in so far as it is not exaggerated, lies in the fact that here too we have an instance of the working of von Baer’s Law of Recapitulation. In the animal the sense of relation begins with sex; in the child we have strange, fragmentary primitive sex-phenomena (if these psychoanalysts be right), dissociated from many of their natural concomitants; phenomena suggesting some close analogy with the temporary appearance in the embryo of structures that disappear again, having lost their significance. Can it be that the purely animal basis on which man’s great structure of relationship is raised, is merely a foundation, becoming gradually hidden, covered up? Love is, no doubt, in origin an impulse of sex. Yet the highest love we know and experience in ourselves has nothing sexual in it. When a man and a maid fall in love there is no thought of such things in the mind of either. Primarily, true love is utterly pure from admixture with animal instincts, though it may be, and is, founded on them in the evolutionary sense, and though they still play a vastly important part, made beautiful by the love they subserve. But the love that _begins_ as conscious sex-instinct is no love at all. There is love between men and women, even young men and women, as well as between those of the same sex, that is either utterly free from all sexual content, or in which that content is so trivial in amount, and so completely dismissed from attention, that it is practically non-existent. If one is conscious of it at any moment, one is so by a definite effort of the mind, and for the specific purpose of bringing before oneself the wonderful emergence of the purest and highest activity of the spirit from so lowly and physical an origin. Such love is far higher than the love between husband and wife often is, where the sexual side is primary as well as primitive, and friendship secondary. Only when husband and wife are first friends, and then, after that, live together with a full realisation of the sacramental meaning of sex as the foundation on which the eternal temple of love has been and is being built, can their union approach the highest level. Then it is indeed the best of all in this life. It takes them closer to the heart of things than mere friendship would, and enables them to make their other friendships perfect through the understanding which it brings. The physical subserves the spiritual, and even in the physical the two are united. The physical and the spiritual are for them one--parts of a whole. Their own friendship is perfect as far as anything human can be perfect, and by it their friendships with others are made perfect.