hiding one's brilliance and blending in with the world; living quietly without showing off one's talent
A yojijukugo derived from Daoist philosophy, describing the ideal of concealing one's wisdom or ability and living in harmony with the mundane world. Often used to praise someone who is capable but chooses to live modestly.
He lives quietly, following the spirit of 和光同塵, without flaunting his talents.
和光同塵 is a phrase derived from the philosophy of Laozi.