Halloween, on November 1, is a traditional western holiday, and October 31, the eve of Halloween, is the most popular time of the holiday. To celebrate the advent of Halloween, children will dress up as a variety of cute ghosts to knock on the door door door-to-door, asking for candy, otherwise trick-or-treating. At the same time, legend has it that on this night, all kinds of ghosts will dress up as children to blend in with the masses to celebrate the advent of Halloween, and Westerners to make the ghosts more harmonious to dress up as a variety of ghosts.