The ancients said, "Gather heaven and earth in pure sunshine, and the living will smell sweet." Incense is a good medicine for promoting the growth of yang, strengthening the body resistance and eliminating pathogens, preventing diseases and preserving health, and treating diseases before they occur, as well as preventing insects.

Ancient sachets were filled with compatible medicinal materials. The purpose of hanging sachets on doors, windows and bed corners was to prevent diseases, preserve health, strengthen the body resistance and eliminate pathogens, and prevent insects. At the same time, making exquisite sachets can also beautify the environment.