Dissociative Identity Disorder

Something that happened in real life and that changed my perception of reality. To feel those eyes looking at me... that presence, it gave me the goosebumps. It seems scary, but that is how it happened: Jasmine, besides psychosis, suffered from Dissociative Identity Disorder (Multiple Personalities). Traditional medicine treats the physical or mental sickness and does not believe in ghosts, elves, spirits or discarnate entities. Any problem that results in a change of behavior is catalogued as a mental disorder. And so... why does the personality change so disparately? How come, in such a brief period of time, a body that is initially healthy, turns into a sick body instantaneously or vice versa? How can such biological changes just emerge from the nothing? I feel such deep love for the people that have been confined into mental institutions. After having had this experience, I know they can heal.