Understand the significance of Grain Rain's offering sacrifices to the sea.

1. The significance of Grain Rain's offering sacrifices to the sea lies in going to sea safely and returning home with a full load.

2. Grain Rain solar terms, fishermen have the custom of offering sacrifices to the sea. Grain Rain, the sea is warm in spring, which is a good time to go fishing in the sea. As the saying goes, "Ride Grain Rain to surf the Internet". In order to go to sea safely and return home with a full load, fishermen in Grain Rain will hold a sea sacrifice on this day to pray for Poseidon's blessing. Therefore, the Grain Rain Festival is also called the "strong festival" for fishermen to go fishing. This custom is popular in coastal areas, such as Shandong Jiaodong and Rongcheng.

3. If there is no whole pig in the sea festival organized by fishermen's partnership, it will be replaced by pig head or steamed pig cake. In the past, every village had a sea temple or a mother temple. When the time came, the fishermen went to the Temple of the Sea and the Temple of Mother with offerings. Others took offerings to the seaside, beating gongs and drums, setting off firecrackers and offering sacrifices to the sea. The scene is very grand.