Fish is an essential dish in the Northern New Year's Eve, because fish has a special symbol. In the north, this is called annual surplus (fish). There is a beautiful moral. And then what? There should be a small fish left. You can't eat it all. In this way, it can better meet the meaning of annual profit (fish).
Moreover, fish is a simple and delicious home-cooked dish, which can be said to meet the requirements of food and people's yearning for a happy life.