A soul which has passed from the earth, and is in the spirit world, can still live on the earth in one way, and that is by obsessing another soul. Very often people have explained this idea wrongly, when they have said that spirit takes hold of a dead body, and, entering into it, makes use of it. The body once dead is dead; it has entered upon the process of returning to its own origin. It has lost that magnetism which attracts the soul and holds it, in order to allow it to function in the physical body. If the dead body had magnetism, then it would not have allowed the soul to return; it would have held it back. For it is the body which holds the soul to the earth; the soul has a pull from within which draws it continually towards its source.