Source: Jin's "Going to Luodao to Handle Affairs": "Standing and looking at your hometown, feeling sorry for yourself."
Allusions: Gu: Look; Pity: pity. Look back at your own shadow and pity yourself. Describe loneliness and depression, and also refer to self-appreciation.
moan and groan without being ill
Source: Song Xin Qiqi's "Linjiang Xian" words: "A hundred years have passed, and I like to sigh more, and I am also sick."
Allusion: groan: a low hum when you are sick. I'm not sick. I'm humming. It is a metaphor for sighing and feeling that there is nothing to be sad about. It is also a metaphor that literary and artistic works have no true feelings and put on airs.