Need. According to relevant public information, it is a habit formed over the years to hold wedding banquets and offer cigarettes to chefs in rural areas. It is not a custom, but a polite behavior and an act of thanking each other. Flowering water seats, in rural areas, people don't go to hotels and restaurants to pack tables like city people when they are married. Instead, I set up a shed in my yard, set up a stove, invited chefs from two villages, and made my own banquet guest house for all my relatives and friends. In the rural areas of northwest China, this custom has been going on since ancient times, no matter the poor or the rich, every family does. After eating a dish, it is like flowing water, so it is called "flowing banquet"