Mazu, also known as the Concubine of Heaven, Queen of Heaven, Mother of Heaven, Mother of God, is a god shared by boatmen, sailors, travelers, merchants and fishermen in all dynasties. In ancient times, sailing at sea was often attacked by wind and waves, and the ship sank and died. The safety of the crew became the main problem of the navigators, and they pinned their hopes on the blessing of the gods. Before the ship sails, it is necessary to sacrifice to the concubine, praying for good wind and safety. "