1. Different concepts: Bixing is an artistic principle and a common skill in ancient poetry. Bixing is a metaphor, a metaphor for people or things, and its purpose is to highlight the characteristics of the objects described. "Xing" is an expression of China's traditional poetry. The usage is to say something else first, then what you want to say. Usually, these two things have something in common.
2. The emphasis is different: Bixing technique is always nothing more than emotion and scenery, and the appearance is just right, or after whipping, or god and light are separated. To say that it has far-reaching, endless and most infectious influence is the author's literary thinking caused by the external environment. Simple understanding is touching the scene.
3. Different sources: Bi Xing comes from Wang Anshi's "Melody of Manna": "There is no difficulty in the day, but it is colorless", and its rise comes from "The History of Han Dynasty, the biography of Dan Guan": "The world is unified, and it is said that the rise of Qin Dynasty has led to the extinction of the holy dynasty. This is not appropriate and it is a big mistake."