Explanation: Refers to the search for their roots sources, to seek and investigate the fundamental things. Source: Song leaf drop "on the old theme Shou Ji Meng Meng," but later the roof Chen Qi Qing students learn alone, Xi suddenly pen book? However, the simple concept of Jun Jie Ji, will be eager to have, then the non-familiar to those who can not enter their system also; short rally, sending the source branch, the non-Bo class who can not push their ethics are. "
The root of the source still made
Utah made root of the source. Song Ye Shi, "title Shou-old on Meng Ji Meng": "rooftop Chen Qi Qing Health and night without independent study, Xi suddenly pens book? Natural watch Jane Jun Jie Ji, will be eager to have, non-cooked in its system to those who can not enter too; summary cohesion, branch source to send this, the non-Bo in their class who can not push too ethical. "