Nightmares will gather near their homes and accept banquets. So, after the "banquet", the villagers dressed up as ghosts and wandered outside the village to guide the ghosts away to avoid evil spirits and disasters. At the same time, the villagers also pay attention to some fruits and other foods in the front yard and backyard, and feed the ghosts to prevent them from hurting people and animals or plundering other crops. Later, this custom continued and became a joke for children to make fun of this ungrateful family.
As for the jack-o'-lantern, there are at least two versions. One is that people hollowed out pumpkins to carve faces and lit candles to disperse ghosts; The other is that the ghost lit a candle to trick people into following the ghost, so people carved a mocking face on the surface of the pumpkin to tease the ghost: Hum! Only a fool will be fooled by you. Legend has it that Jack, an Irishman, was the first person to use pumpkins, so people also call Jack-o-lantern a grimace pumpkin lantern.