Through relevant literature review on liver governing free coursing

this paper aims to raise the opinion that the connotation of the liver governing the day-night regulation of free coursing is that through free coursing

the liver makes the channel of qi movement unobstructed and guide the orderly operation and compress of qi movement in human body

at the same time

assist other four organs to play their functions selectively in different times

either rising and dispersing

or descending and converging

or closing and storing. The operation and distribution of human defensive qi and blood also have day-night rhythm changes in the regulation of liver controlling dispersion.