What does it mean to pretend to be ugly when you are busy?

Family heirlooms, farming and studying, and leisure fashion students dress up as ugly, describing the diversity of social occupations. "Farming and reading" here refers to a way of life and value orientation. "Being ugly" refers to the drama characters. Everyone has his own face to show his identity. The next sentence is: the monarch is in the play, and after the play, he is still a scholar, a farmer and a businessman. "Xiang" refers to the emperor and the general. "Scholars, agriculture, industry and commerce" is the "four-people society". China was divided into four social strata in ancient times, among which "scholars" were similar to today's intellectuals, ranking first. This couplet reads: Everyone usually has his own career and is busy with his own career, but in his spare time, he has to act, play a role, play the world, and even become a king and prince in the play, as if it were true. But at the end of the play, as soon as you took off your makeup, you changed back to your original appearance. If you are a scholar, you'd better go to school. If you are a farmer, you still go to farm. This link describes the reality of life and the virtuality of drama.