136. It is well known that the will and understanding rule the body at pleasure, for what the understanding thinks, the mouth speaks, and what the will wills, the body does. From this it is plain that the body is a form corresponding to the understanding and will. And because form also is predicated of understanding and will, it is plain that the form of the body corresponds to the form of the understanding and will. But this is not the place to describe the nature of these respective forms. In each form there are things innumerable; and these, in each of them, act as one, because they mutually correspond. It is from this that the mind (that is, the will and understanding) rules the body at its pleasure, thus as entirely as it rules its own self. From all this it follows that the interiors of the mind act as a one with the interiors of the body, and the exteriors of the mind with the exteriors of the body. The interiors of the mind, likewise the interiors of the body, will be considered further on, when degrees of life have been treated of.