Mid-Autumn Festival is the second largest traditional festival in China, which falls on the 15th day of the eighth lunar month every year. Like many traditional festivals in China, the Mid-Autumn Festival has many myths and legends, among which the Goddess Chang'e flying to the moon's story is the most widely circulated. According to legend, after Hou Yi shot down nine suns in the sky, many people came to learn from the teacher. On this day, Hou Yi gave his wife Chang 'e the elixir for safekeeping, which happened to be seen by Peng Meng. When Hou Yi went out hunting, Peng Meng threatened Chang 'e to hand over the elixir. At the critical moment, Chang 'e swallowed the medicine and flew to the sky. Because Chang 'e was concerned about her husband, she flew to the nearest moon and became a fairy. After hearing the news that the Goddess Chang'e flying to the moon became an immortal, people set up incense tables under the moon to pray for good luck and peace to the kind Chang 'e. Since then, the custom of Yue Bai in Mid-Autumn Festival has spread among the people.