Tree, and then carved a cross on the stump, threatening the devil not to come down. In order to get down from the tree, the devil made a contract with Jack and promised to cast a spell to make Jack never commit a crime in exchange. After Jack's death, his soul can neither go to heaven nor go to hell. It can only be illuminated by a small candle to guide him wandering between heaven and earth. This small candle is placed in a hollowed-out radish, which is called "Jack-o 'lantern". Today, the ancient radish lantern has evolved into a pumpkin lantern made of pumpkins. It is said that soon after the Irish arrived in America, they found that pumpkins were superior to radishes in source and carving, so pumpkins became Halloween pets. Now, if someone hangs a jack-o-lantern on the window on Halloween night, it means that those who wear Halloween costumes can knock on the door and ask for candy. There is another version of the legend: it is said that a man named Jack was so stingy that he couldn't go to heaven after his death, and because he couldn't go to hell after playing tricks on the devil, he had to wander around with lanterns until the judgment day. In order to scare away these wandering souls on Halloween, people carve terrible faces with turnips, beets or potatoes to represent Jack holding lanterns, which is the origin of pumpkin lanterns.