2. Allusions:
Mu Zong asked Liu Gongquan how to use a pen, and Gong Quan replied: "Use a pen in your heart, and your mind is right." "When Mu Zong was lonely, he changed his face and realized his remonstrance.
Interpretation: The original meaning is calligraphy. You should write with your heart. As long as the mentality is correct, writing is a good word. In fact, it is a metaphor, saying that the emperor should be upright and do things that benefit the country and the people. It can also be extended to being a man and doing things, having a correct heart and acting naturally.