Deep study
Jishenyanji, a Chinese idiom, Pinyin is j í sh ē NY á NJ ī, which means to explore the profound and subtle aspects of things. It comes from the book of changes.
Idiom usage
If you study deeply and meticulously, you will make all the people with lofty ideals think hard and study a few things deeply, so as to be engaged in manufacturing. (Zheng Guanying, Qing Dynasty)
The origin of Idioms
In the book of changes, Xici Shang: "the reason why the sage studied the book of changes deeply is that he studied it deeply."
Deep study
the two musical instruments strike the same note - shēng qìng tóng yīn
as if one were waking from a dream - rú mèng fāng xǐng