pleased with oneself
Complacency, a Chinese idiom, means complacency. The sun shines on Sanggan River.
The origin of Idioms
Ding Ling's "the sun shines on Sanggan River" 39: "but when literary talent is complacent about the victory over Jiang Shirong, he doesn't understand that it just stirs up the mood of the masses. It can't be said that the masses are fully aware and have formed a movement."
Idiom usage
Used as a predicate, attributive, or adverbial; used in writing.
pleased with oneself