This is not a fast-food book joking about history, but a serious dialogue across time and space. When we restore the "poetry immortals" and "poetry saints" to ordinary people who have to pay mortgages, are afraid of losing their jobs, and worry about getting married, those brilliant poems have become memoranda of survival that have lasted for thousands of years. Perhaps Li Du, Su Xin and others have already given the answer: use self-deprecation to fight absurdity, and use poetry to resolve difficulties.