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在线答疑、课后同类题练习、讲义下载、短信提醒Samhain signifies "summers end" or November. Samhain was a harvest festival with huge sacred bonfires, marking the end of the Celtic year and beginning of a new one. Many of the practices involved in this celebration were fed on superstition.
The Celts believed the souls of the dead roamed the streets and villages at night. Since not all spirits were thought to be friendly, gifts and treats were left out to pacify the evil and ensure next years crops would be plentiful. This custom evolved into trick-or-treating.