We are so scared of ghosts because they embody the unknown and the inexplicable, challenging our understanding of reality. Ghosts represent a bridge between the living and the dead, stirring deep-seated fears of mortality and the afterlife. Their presence suggests unfinished business and unresolved emotions, invoking anxiety about our own life's meaning and what might linger after death. Additionally, cultural narratives and personal experiences amplify this fear, making ghosts a powerful symbol of our deepest, most primal anxieties.