Victoria Nelson said this quote

“ One of the most distinctive features of psychosis is its dynamic of externalization. Madness is experienced as being enacted on the subject from without; a person perceives his own unintegrated psychological contents as outer-world creatures and demons who threaten to engulf and physically destroy him. The barriers between inner and outer, subject and object, dissolve so entirely that no boundary remains to protect the ego from the onslaught of this projected unconscious material. ”