Why does belief in ghosts persist despite advances in science and reason? A 2025 Gallup poll shows about 39% of Americans still believe in ghosts. Why do some rational minds still consider them a possibility even when evidence remains elusive? From ancient superstitions to modern “professional” TV ghost hunters, the belief in spirits has haunted human history. Are the lingering traces of the dead reflections of people's longing, guilt, or fear? Even skeptics study this topic seriously to analyze social psychology.