During the process of sleep it is merely the physical body that is at rest and in quiet; the soul life with all its activities goes right on. Sleep is nature's provision for the recuperation of the body, for the rebuilding and hence the replacing of the waste that is continually going on during the waking hours. It is nature's great restorer. If sufficient sleep is not allowed the body, so that the rebuilding may equalize the wasting process, the body is gradually depleted and weakened, and any ailment or malady, when it is in this condition, is able to find a more ready entrance. It is for this reason that those who are subject to it will take a cold, as we term it, more readily when the body is tired or exhausted through loss of sleep than at most any other time. The body is in that condition where outside influences can have a more ready effect upon it, than when it is in its normal condition. And when they do have an effect they always go to the weaker portions first. Our bodies are given us to serve far higher purposes than we ordinarily use them for. Especially is this true in the numerous cases where the body is master of its owner. In the degree that we come into the realization of the higher powers of the mind and spirit, in that degree does the body, through their influence upon it, become less gross and heavy, finer in its texture and form. And then, because the mind finds a kingdom of enjoyment in itself, and in all the higher things it becomes related to, _excesses_ in eating and drinking, as well as all others, naturally and of their own accord fall away. There also falls away the desire for the heavier, grosser, less valuable kinds of food and drink, such as the flesh of animals, alcoholic drinks, and all things of the class that stimulate the body and the passions rather than build the body and the brain into a strong, clean, well-nourished, enduring, and fibrous condition. In the degree that the body thus becomes less gross and heavy, finer in its texture and form, is there less waste, and what there is is more easily replaced, so that it keeps in a more regular and even condition. When this is true, less sleep is actually required. And even the amount that is taken does more for a body of this finer type than it can do for one of the other nature. As the body in this way grows finer, in other words, as the process of its evolution is thus accelerated, it in turn helps the mind and the soul in the realization of ever higher perceptions, and thus body helps mind the same as mind builds body. It was undoubtedly this fact that Browning had in mind when he said: "Let us cry 'All good things Are ours, nor soul helps flesh, more now, Than flesh helps soul.'" Sleep, then, is for the resting and the rebuilding of the body. The soul needs no rest, and while the body is at rest in sleep the soul life is active the same as when the body is in activity.