1, origin of sachet:

Legend has it that every year at noon on May 5, all monsters will come out at this time. Therefore, the ancients also called this festival "Double Five Festival" and "Five Poisons Day". Legend has it that it was difficult for the ancients to avoid this time. If they can avoid it, they will be safe, otherwise they will be killed by ghosts. At this time, Yin Bodhisattva, who helped the poor, had a dream, saying that monsters were most afraid of metal and fragrance. As long as you bring metal and fragrance, you can avoid the harm of monsters. As soon as people spread the word, the story of Guanyin Bodhisattva holding a dream to save people soon spread. They wore all kinds of metals and perfumes to ward off evil spirits at noon that day. This practice, commonly known as "suppressing noon", proved to be safe. Because people wear things like metal and fragrance on this day every year, it has gradually developed into today's sachet for a long time.

2, the role of sachet:

Wear sachets to ward off evil spirits and plague, and decorate the inner head. The sachet contains cinnabar, realgar and fragrant medicine, wrapped in silk and tied with five-color silk thread. Chinese herbal medicines used in sachets can emit natural fragrance, which belongs to the category of five fragrances in the theory of traditional Chinese medicine, and have the effects of inducing resuscitation, invigorating the spleen, eliminating filth and refreshing the mind. Modern medical research has also proved that these drugs have aromatic odor and antibacterial and antiviral effects because they contain a lot of volatile oil. Used to repel insects and pray.