A modern veterinarian is dressed as an abandoned son of the Tang Dynasty clan and sent to Yuanzhou to raise horses at the foot of Liupan Mountain. Others laughed at him: "You have a life of raising cattle, but you want to make a comeback?" He squatted in front of the sick cow and touched it with his fingers - he saved a cow in three days and a shepherd in three months. When the imperial court was short of horses for war, he sent a thousand horses; when the Tibetan invaders were short of grain and grass, he opened warehouses to help the people. The traitor Yu Chaoen wanted to kill him, but he sent him to the guillotine with his backhand. "The cattle breeder can also send you on your way." The emperor conferred on him the title of Tutor, King of Liupan, and granted him a settlement of 30,000 households. On the night of the wedding, the people at the foot of Liupan Mountain lit torches and lined up from Yuanzhou City to Xiaoguan. His grandson asked him: Grandpa, what are you most proud of in your life? He said: It's not about making a king, it's not about killing fish to show favor - it's about raising Liupanshan cattle all over the Tang Dynasty. This article participates in the essay competition with the theme of "Revelation of Mountains and Rivers, Reflection of History". The mountains and rivers in ancient books are the bones, and the native land of Guyuan is the soul.