a wild horse running about without reins
Wild horse without rein, a Chinese idiom, Pinyin is y ě m ǎ w ú Ji ā, which means to refer to arbitrary action without restraint. It comes from the biography of Haodan, a famous Taoist in Ming Dynasty.
The origin of Idioms
In the fourth chapter of the biography of Haodan, a famous teacher of Ming Dynasty, it is said that "Heaven's chance is in the way, the sharp point is still blunt, and the wild horse is too late."
Idiom usage
As object and attribute. It's too late for a wild horse to run wild.
Chinese PinYin : yě mǎ wú jiāng
a wild horse running about without reins
violent political or social upheavals. tiān bēng dì jiě
speak boldly in defense of justice. zhàng yì zhí yán