5. And then, fifthly, at some point in its growth love summons passion into life. What has been hitherto an emotion of the heart becomes also a tumultuous activity of the whole being, and love having mastered the whole incarnate nature of each in turn drives the two together in that oneness of the flesh which is the decree of God. No doubt it is just here that the compulsions of civilized society set a serious problem for ardent lovers. Primitive men probably knew nothing of a period of engagement, and lovers would proceed to become wholly wedded just as soon as nature laid her compelling hand upon them. But it is our glory that we are not simply the tools of natural forces. We belong to the directorate in this life, and even on the force of love we can impose times and seasons. But when the right time does come, then lovers who have already been attaining to union of heart and mind express their passion also in the union of their bodies, and this wonderful experience, when it does so enter life, is realized as something sacramental. It is literally and exactly an expression in the terms of the body of something which is already a spiritual fact. Nothing satisfies real love except this complete mingling of two personalities. It is not satisfied without physical intimacy, and yet physical intimacy alone is not enough. That which is satisfied by mere physical intimacy is not love. The full human passion which alone deserves that name calls also for intimacies of mind and spirit--for the interplay of two personalities through the whole stretch of their powers. But it cannot be too strongly said that on the terms I have indicated the ultimate bodily union of two lovers is a beautiful and happy thing. It is felt to be something with large spiritual consequences. In some mysterious way it really does bind souls together. Each knows that henceforth he or she is bound to the other for life, and a man is usually moved by a glowing sense of reverent gratitude to the woman who has thus trod with him the strange paths of that new country. Considered apart from love, such an experience may seem to be gross, because apart from love it is gross. But as an incident in the communion of two loyal hearts it is realized as a pure and natural thing. Through it the flesh is caught up into harmony with the spirit and is thereby redeemed. A certain new balance and repose of being is attained whereby a whole personality will experience a wonderful sense of liberation. [Footnote: I do not think the creative instinct often enters into consciousness at this point. It does so with some women, but with very few men. As a rule the real content of the experience is just an ardent desire in each for utter nearness to the other. It is the expression of their love that they desire. It is each other that they love--not as yet any third person.]