Dragon Boat Festival is the beginning of summer (noon month). In the fifth month of the lunar calendar, the weather is hot and humid, and there are many viruses, which have always been regarded as "bad months" by the ancients. The ancients described the "five poisons" here, snakes and insects breed, bite people easily, people get sick easily, and plagues spread easily. Therefore, the main folk customs of the Dragon Boat Festival, including drinking realgar wine, wearing sachets, hanging calamus and wormwood, tying five-color silk thread, hanging a map of five poisons, and hanging a statue of Zhong Kui, have the significance of expelling disasters and plagues and praying for peace and health.