Heart and kidney
Guixinzhuoshen is a Chinese idiom. Pinyin is Gu ì x ī nx ù sh è n, which means to describe poor thinking and painstaking, deliberately. It's the same as "Gui Gui Xin Fu". From the book of Fuxu Juyuan.
The origin of Idioms
According to Qian Qianyi's Fu Xu Ju Yuan Shu in Qing Dynasty, "a servant's horse's teeth are long, and his heart and kidney are broken three times."
Idiom usage
Used as a predicate or object; used in writing
Heart and kidney
be on guard against conceit and impetuosity - jiè jiāo jiè zào
There is an unexpected situation in the sky, and there is a blessing and misfortune in people - tiān yǒu bù cè fēngyún,dì yǒu dàn xī huòfú