Hidden scales and wings
It is a Chinese word, which means that the sage lives in seclusion and waits for the opportunity. It comes from the order of Xuande queen.
explain
On the surface, it means that the Dragon hides its scales and the Phoenix converges its wings. It refers to the sage living in seclusion and waiting for the time to come. It is the same as "hidden scale".
source
In the Southern Dynasty, Liang renfang's Xuande empress's order: "in the past, it was obscure, but it was invisible."
Hidden scales and wings
change existing habits and customs - yí fēng yì shàng
blow on an instrument or finger a stringed instrument - pǐn zhú tán sī