What is the role of Tang Priest in the Journey to the West, and what is the role of Bai Longma, a pig and a sand monk?

Tang Priest is upright and kind, devoted to Buddhism, kind, timid, pedantic and poor in discrimination. Pig Bajie: Its main function is public relations, especially internal public relations, to coordinate the contradiction between the Monkey King and Tang Priest.

Friar Sand: Mainly for stability and unity. As grass-roots workers, they also have the role of hard work. Baimalong ate the Tang Priest's white horse and changed it for his. After bearing fruit, he was named "Eight Dragon Horses" by the Buddha, jumped into Longtan, grew scales and flew to the watchpost of Qingtianhua. His main story is to fight the devil thirty times and urge Bajie to find Wukong.