Possession, particularly demonic possession, is the belief that an individual’s body or mind is controlled by an external, typically malevolent, spiritual entity. This phenomenon is deeply embedded in the folklore, religions, and cultural narratives across the globe and throughout history. Descriptions of possession often include dramatic and distressing symptoms, such as speaking in voices not one’s own, displaying abnormal strength, an aversion to sacred objects or names, knowledge of facts unknown to the individual, and significant changes in personality, behavior, and physical appearance. While often associated with demons, the concept of possession can extend to other types of spirits or entities believed to exert control over a living person.

The causes of possession, according to various beliefs, can range from direct demonic influence, dabbling in forbidden practices, or even being targeted by curses. It is distinct from mental illness in the eyes of many believers, though some skeptics attribute alleged cases to psychological conditions like dissociative identity disorder, psychosis, or epilepsy. However, proponents argue that true possession presents symptoms that defy conventional medical or psychological explanation, often exhibiting supernatural knowledge or abilities. Understanding possession involves delving into a complex interplay of religious dogma, cultural fear, and the human search for explanations for extreme and inexplicable behaviors.