be prompted by a sudden impulse
On a whim, Chinese idiom, Pinyin is x ī nxu è L á ICH á o, which means to describe a sudden impulse and a sudden thought. From the romance of Fengshen by Xu Zhonglin of Ming Dynasty.
Idiom usage
It is often used with "suddenly". example thinking, on a whim, he walked into the house behind Feng laolan. Liang Bin's red flag
Idiom story
It is said that there is a real Taiyi man sitting on the bed of biyou in Jinguang cave of Qianyuan mountain. He is carrying the spirit of Yuanshen, and he is on a whim. Because the immortals put the three things of worry, anger, and lust behind them forever. They want to make their heart as a rock and never waver. If they have a sudden impulse, it will indicate that something will happen. Sure enough, disciple Nezha had an accident.
The origin of Idioms
Chapter 34 of the romance of Fengshen by Xu Zhonglin of Ming Dynasty: "all immortals will never forget the three things of worry, anger and love If you are on a whim, you will hear.
be prompted by a sudden impulse
get the opposite of what one wants - qiú yì fǎn sǔn
have no one to depend on and no where to live - wú suǒ yī guī
leave a stink for ten thousand years - yí chòu wàn nián