People have reported experiences with ghosts from antiquity; Jung documented his encounters with mysterious sensed presences. How do we make meaning of such experiences? Are they visitations from external beings? Could they be related to unconscious reactions to toxic substances, auditory subtleties, or erratic electromagnetic fields?
The question of whether, when, and what psychoactive medications may be helpful is both big and ambiguous. Mental distress has always been strongly influenced by cultural filters and subjective perceptions.