in the four seas and nine regions -- in the whole country

in the four seas and nine regions -- in the whole country

Jiuzhousihai, Chinese idiom, Pinyin is Ji ǔ zh ō us ì h ǎ I, meaning the world, refers to the whole of China. It's from the song of Dengfeng.

The origin of Idioms

In Tang Dynasty, Lu Zhaolin's song of Dengfeng, it is said that "nothing happens in Jiuzhou and all over the world, and you will be happy forever."

Idiom usage

Used as an object or attribute; used in writing. However, it is pure and virtuous, and the imperial court has a great discussion on it. Wang Anshi's Xianggong book of the upper Song Dynasty