The great positive force of Health, and the power which it has to _expel_ disease from its neighborhood is a thing realised, I believe, by few persons. But it _has_ been realised on earth, and will be realised again when the more squalid elements of our present-day civilisation have passed away. III The result then of our digression is to show that Health--in body or mind--means unity, integration as opposed to disintegration. In the animals we find this physical unity existing to a remarkable degree. An almost unerring instinct and selective power rules their actions and organisation. Thus a cat before it has fallen (say before it has become a very wheezy fireside pussy!) is in a sense perfect. The wonderful consent of its limbs as it runs or leaps, the adaptation of its muscles, the exactness and inevitableness of its instincts, physical and affectional; its senses of sight and smell, its cleanliness, nicety as to food, motherly tact, the expression of its whole body when enraged, or when watching for prey--all these things are so to speak absolute and instantaneous--and fill one with admiration. The creature is "whole" or in one piece: there is no mentionable conflict or division within it.[12] Similarly with the other animals, and even with the early man himself. And so it would appear returning to our subject--that, if we accept the doctrine of Evolution, there is a progression of animated beings--which, though not perfect, possess in the main the attribute of Health--from the lowest forms up to a healthy and instinctive though certainly limited man. During all this stage the central law is in the ascendant, and the physical frame of each creature is the fairly clean vehicle of its expression--varying of course in complexity and degree according to the point of unfoldment which has been reached. And when thus in the long process of development the inner Man (which has lain hidden or dormant within the animal) at last appears, and the creature consequently takes on the outer frame and faculties of the human being, which are only as they are because of the inner man which they represent; when it has passed through stage after stage of animal life, throwing out tentative types and likenesses of what is to come, and going through innumerable preliminary exercises in special forms and faculties, till at last it begins to be able to wear the full majesty of manhood itself--_then_ it would seem that that long process of development is drawing to a close, and that the goal of creation must be within measurable distance. But then, at that very moment, and when the goal is, so to speak, in sight, occurs this failure of "wholeness" of which we have spoken, this partial break-up of the unity of human nature--and man, instead of going forward any longer in the same line as before, to all appearance _falls_. What is the meaning of this loss of unity? What is the cause and purpose of this fall and centuries-long exile from the earlier Paradise?