The equilibrium between them is a spiritual one, since it is between good and evil. This equilibrium is the source of a person's free will. In and through this equilibrium a person thinks and wills, so that he speaks and acts as if of himself. His rational faculty is free to decide and choose whether he wants to receive good or to receive evil. This means whether he wants rationally in freedom to dispose himself favourably to conjugial love or to scortatory love. In this case he turns the back of his head and his body to the Lord; in the other he turns his forehead and chest to the Lord. If he turns to the Lord, his reason and freedom are guided by Him; but if he turns his back on the Lord, his reason and freedom are guided by hell.