The title is a poem by Lu Jiuyuan, the great master of mind learning in the Southern Song Dynasty. This poem is very crazy, and the poetic environment is extremely aloof. In the first two lines, I can climb up to "Nandou" and "Beichen" with just one hook, which metaphors the "tallness" of my soul and fills the entire universe. This poem is very touching. The philosophy of mind science is that my mind is the universe. Then he looked up at the sky and saw that no one like him could be found anymore. The poem immediately portrayed a sense of loneliness that transcended time and space. Looking at the endless emptiness of the "sky", "this person" seemed so small. The whole poem is full of tension, portraying the image of a philosopher drunk alone under the starry sky.