Have you ever wondered why people celebrate the mid-autumn festival? There is the custom of worshipping the moon on every mid of August in the lunar calendar. Moon cake was initially used as an offer to the God of Moon. As time passes, the offering gradually evolved into a family reunion to enjoy moon cakes and the moon. Slowly, the moon cakes has became a must for the festival. "The round moon on the August 15th with the sweet and savory moon cake", quoted to present the act of eating moon cake on the mid-autumn festival.