Ask? On the 23rd day of the first lunar month, if the moon is invaded by clouds, if the sun rises over 30. The first layer means: Twenty-three years, the moon is in the sky.

The previous sentence "the first 23 days were invaded by clouds" means that it will not be put into use until around 23. This person is like a bright moon covered by clouds, and the light is covered. Naturally, the phrase "After thirty, it's like the sun rises again" is to the effect that people in their thirties have reached middle age, but they have risen again like the sun in their careers (generally speaking, their twenties are compared with the rising sun, so here they say "heavy" rise), and they have begun to make great achievements, and they are close to their thirties.