Retreat and advance
Chinese idiom, Pinyin is Tu ì L ǚ J ì NL ǚ, meaning to advance and retreat together. It comes from the book of the Song Dynasty, seven records of music.
The origin of Idioms
"Song Shu · Yue Zhi Qi" says, "once you relax, you can retreat." See advance and retreat.
Retreat and advance
different approaches but equally satisfactory results - yì qǔ tóng gōng
dwell in caves and live in groups - qún jū xué chǔ
extraordinary as if done by the spirits - shén gōng guǐ fǔ