Possession refers to the state of being controlled or inhabited by an external force, often depicted in horror and suspense narratives as a means of exploring the battle between good and evil within a character. This theme often manifests through physical or psychological transformations, creating tension and conflict as the possessed character struggles against their inner demons or malevolent entities. Possession serves as a powerful narrative device to evoke fear and suspense, compelling audiences to confront their deepest anxieties about loss of control and identity.