Halloween originated from the ancient Celtic festival of Samhain, which marked the end of the harvest season and the beginning of winter. The Celts believed that on this night, the boundary between the living and the dead was thin, allowing spirits to return to the world of the living. Over time, this tradition merged with Christian celebrations, leading to the modern Halloween we know today, featuring costumes, trick-or-treating, and pumpkin lanterns.

万圣节起源于古代凯尔特人的萨温节（Samhain），这个节日标志着丰收季节的结束和冬季的开始。凯尔特人相信，在这一天，生者与死者之间的界限变得模糊，亡灵可以回到人间。随着时间推移，这一传统与基督教庆祝活动融合，形成了今天的万圣节，包括穿戏服、不给糖就捣蛋以及南瓜灯等习俗。