In ancient China, people thought that Mid-Autumn Festival was an important moment in the mid-autumn of the year, and it was also the time of the handover of Yin and Yang. The qi of heaven and earth complemented each other and Yin and Yang were in harmony. At this time, the moon is rounder and brighter than other times, and it is regarded as a symbol of reunion, happiness and good luck. Therefore, people will get together on the Mid-Autumn Festival to enjoy the moon, eat moon cakes, enjoy lanterns, etc., to express their reunion and pray for good wishes. These activities are also closely related to the name of Mid-Autumn Festival, which reflects people's pursuit of reunion and a better life.