First explain the allusion:
Daoliangmou
This originally refers to birds looking for food. Du Fu's "Ascending the Pagoda of Ci'en Temple with the Lords": "Looking at the geese following the sun, each has his own plan." It is also used as a metaphor for people's pursuit of food, clothing and basic necessities of life.
So his general idea is: when you are young and frivolous, you don’t know that making a living is difficult, you don’t compromise or bow down to worldly things, you understand that the world is difficult but find it difficult to stand on your own feet, you appeal everywhere but in vain, only then do you realize that you can have enough food and clothing. It’s still the person behind it—Dad Pin!
It’s a limerick. It’s said on the Internet that it’s a riddle, guessing the zodiac… I didn’t guess it…