From the Hometown Trilogy to A Touch Of Sin, The World, and then to Mountains May Depart, Jia Zhangke has been using dialects to tell the ordinary and true stories of his hometown in Shanxi province, which describes the ordinary and pale fate of ordinary people. In his films, dialects are not only the identity symbols and spiritual symbols of the characters, but also the representation of Shanxi regional culture and the changes of the times. He uses the dialect symbol to stitch the fate of the character with the regional culture and the spirit of the times, presenting the opposition between ideal and reality, so that the audience could understand the theme and meaning of the film in the narrow living state of the characters and in the process of gradual destruction.