There are souls which, crab-like, crawl continually toward darkness, going back in life rather than advancing in it, using what experience they have to increase their deformity, growing worse without ceasing, and becoming steeped more and more thoroughly in an intensifying wickedness.
The soul is something which contains the body. The body doesn't contain the soul. The soul, if we put it into modern language, is the entire complex of relationships in whose context this organism exists.
The soul comes from without into the human body, as into a temporary abode, and it goes out of it anew it passes into other habitations, for the soul is immortal.