Long before the Roman Empire's Western Expedition, Celts lived and multiplied in the British Isles and France. They believe that on October 31st every year, the souls of the dead will appear from the graves. Therefore, on this night, we should make good food, and the ghosts of dead relatives should visit and enjoy it. At the same time, we should light a bonfire in Shangqiu in the wilderness and drive away monsters with flames. They themselves wore skins and masks, dressed as ghosts, and sang and danced around the bonfire until late at night. This is the original form of "Ghost Festival".