Tulpanmancy: Daring to hear voices

Good article on the topic.  I recently saw a preview of Glass the movie. The same character from Split is in it, as well as the previous movie Unbreakable. The split character has split personalities to the point of schizophrenia, but we all have these different voices from our past in our head: Parents, teachers, different points in our own lives, etc. It can become a healthy psychological practice to acknowledge and engage them when they arise. There is no need to find metaphysical sources for them. Exteriorizing them like that just might facilitate schizophrenia.