The understanding of psychic disorders and the means to remedy them will remain limited until official science stops refusing to recognize the existence of invisible entities and reducing everything that transpires in people to physicochemical processes. Even if the reality of these physicochemical processes cannot be denied, we must understand that they are the consequence of psychic phenomena produced by living entities.
Obviously, biologists and surgeons should not expect to discover these entities through their microscopes or at the tips of their scalpels.
However, our inability to see things or beings is hardly proof they do not exist.
Have you ever seen germs and viruses? So, just as we open the door to germs if we allow impurities to enter our physical body, so too we open the door to dark entities that cause disorders by allowing impurities into our psychic body.