Self...lost, overtaken, evil-driven, powerless. 1900s, Age of Anxiety, discovers the Doppelgänger, Ghosts, Vampires, Werewolves, endowed with potent psychological & sexual connotations, bring insanity & hysteria into focus.
Religious supernatural recognized a self torn between transcendent forces that fought for its possession; search for salvation is expressed as war, conflict & terror.