Sea food and Eggs, by Zhang Dazhuang. [Photo/artron.net]

In ancient China, people believed a round egg symbolized a happy life and eating eggs on the day of Start of Summer was a prayer for good health. They put leftover tea into boiled water together with eggs and the original "tea egg" was created. Later people improved cooking methods and added spices to the eggs to make them taste delicious. Today tea egg has become a traditional snack in China.