I tried to select a sample that is very close to the largest average value of rural western China. I hope to pass the original record of this sample with the most objective attitude to reflect the greatest commonality of rural society in western China. During the filming, the film gave up the record of extreme events, local characteristics and folk customs, gave up the description of the personalities of the characters in the film, and gave up my personal feelings about the characters in the film. There is only one purpose, to prevent individual things from being affected by this average. influences. The filming took more than two years. It was long and lonely. When my personal feelings and the specific life of the villagers became closer and closer, I kept reminding myself to give up my personal feelings and observe the pain in the countryside. This has always been the most painful struggle in my heart.