It is remarkable that that heap which is built up of bodily and worldly elements [see 856] is pictured as a hard callus, or as an outer crust. In some, this callus appears thicker and harder; in some it does not appear, but it is nevertheless there. That callus is a heap of fallacies of the senses, consequently of falsities glued together by the loves of self and of the world, which must indeed be softened, but not broken, for it has its roots from the inward parts, and this callosity from the more inward. When the removal of this callus is being pictured, such as it appears by a spiritual display in the realm of spirits, then an underlying medullary substance is seen, almost such as exists in a person on earth, in whom the callous substance is depicted by bony skull, and the inward parts by medullary brain tissue.