Traditionally, it is celebrated on the fifteenth day of the eighth lunar month in observance of the bountiful Autumn harvest. Although old rituals are no longer followed, families continue to gather for a day to relax and eat moon cakes. Upon this occasion, the legend of the Moon Goddess, CHANG-O, is often told to children.
Once upon a time there was a famous archer, Hou Yi, who with his arrows was able to slay mankind’s worst enemies, ferocious beasts that inhabited the earth. Yi was married to Chang-O, a beautiful but inquisitive woman who had been an attendant of the queen mother of the west before her marriage. Now at this time, there were 10 suns that took turns circling the earth-one every 10 days. One day, all 10 of the orbs circled, together, causing the earth’s surface to burn and threatening mankind. The wise emperor of China summoned Yi and commanded him to kill but one of the suns. This Yi proceeded to do. Upon the completion of his task, Yi was rewarded with a pill, the elixir of life, and advised: "make no haste to swallow this pill, but first prepare yourself with prayer and fasting for a year." Being a wise man, Yi took the pill home and hid it under a rafter while he began healing his spirit, In the midst of this, Yi was summoned again by the emperor.
While her husband was gone, Chang-O noticed a beam of white light beckoning from the rafter. She followed it and a fragrant perfume, discovered the pill and swallowed it. Immediately, Chang-O found she could fly. Just at that moment her husband returned home, realize what had happened and began to reprimand his wife. Chang-O flew out the window into the sky. Yi sped after her, bow in hand, and the pursuit continued halfway across the heavens. Finally, Yi had to return to the earth because of the force of the wind.