The tradition of eating mooncakes during the Mid-Autumn Festival in China has a long history. It is believed that mooncakes were first created during the Yuan Dynasty as a way to secretly pass messages between rebel forces who were planning to overthrow the ruling Mongol government. The messages were hidden inside the mooncakes, which were then distributed to the rebels. Today, mooncakes are enjoyed by people all over China and around the world as a symbol of reunion and good fortune. They are often filled with sweet or savory ingredients such as lotus seed paste, red bean paste, or egg yolk, and are typically round in shape to represent the full moon.