" This original tie with the body as with something “peculiarly one’s own” is the basis of all individual development. Later the ego relates to the body, to its superior powers, and to the unconscious—with which its processes are largely identified—in a different and even contrary way. As the higher principle working through the head and consciousness, the ego comes into conflict with the body, and this conflict sometimes leads to a neurotic, partial dissociation which, however, is only the product of a later overdifferentiation. "

― Erich Neumann , The Origins and History of Consciousness