It means: Look at the vastness of the world, there is no place that is not the king’s fief; look at the end of the horizon, there is no one who is not the king’s slave.

Source: "Xiaoya Beishan"

Original sentence: Under the sky, is it the king's land; on the shore of the land, is it the king's ministers. Doctors are not all equal, but I am dedicated to being the best.

Interpretation: Look at the vastness of the world, there is no place that is not the king's fiefdom; look at the end of the horizon, there is no one who is not the king's slave; lament that the doctor's unfair distribution of labor , I am the only one who makes me work so hard for national affairs!

Extended information:

The society and political power of the Zhou Dynasty were organized according to a strict patriarchal system. The officials of the king and the princes were divided into three levels: ministers, officials and scholars. The hierarchy was strict. The status of superiority and inferiority is insurmountable, and the status of superiority and inferiority is determined entirely according to the distance and distance of the blood relationship. Scholars belonged to the lowest class and were in the most enslaved and oppressed position within the ruling class.

There are many poems in "The Book of Songs" that describe the hard work and pain of this class and express their depression and dissatisfaction. This objectively exposes the profound contradictions in the relationship between the upper and lower ranks within the ruling class and reflects the patriarchal hierarchical society. inequality and its hidden dangers.