Rapping, frequently linked to spiritualist occurrences, denotes rhythmic noises ascribed to otherworldly beings or concealed devices. From Edgar Allan Poe’s unsettling knockings in The Raven to Andrew Lang’s doubtful interpretation of spirit rappings, writers have examined its enigma.
Karl Wilson Gehrkens connected it to musical rigor, while Reuben Briggs Davenport analyzed its validity within spiritualism. These differing viewpoints—ranging from literary symbolism to paranormal investigation—highlight humanity’s intrigue with the imperceptible. The theme unites art, doubt, and the endeavor to unravel the mysterious.