1. Looking at the back of one's neck: It means being able to see someone else's neck and back, which means that one can catch up with or compare with them. Looking at one's neck means that one can only see the back and cannot see the head clearly. It can also be used. It is used as a metaphor to reach the realm he has reached, but it usually means that there is a certain gap between the object of desire;
2. Powerful and penetrating the back of the paper: describes the strong and powerful calligraphy, and the strokes almost penetrate to the back of the paper, and also refers to the profound meaning of the poem. , the words are concise;
3. Sweat profusely: It means that sweat is flowing all over the back, describing being very scared or ashamed. Now it also describes sweating a lot and clothes are soaked;
4. Thorns on the back: It means like there are thorns on the back, describing inner fear and restlessness;
5. People's support or opposition: refers to the support or opposition of the people.