The meaning of "righteousness" in the Song of Righteousness mainly comes from

Meng Zi's "Vast Natural Spirit". The meaning of "righteousness" in "Song of Zhengqi" mainly comes from Mencius' "Hao Ran Qi", which is a kind of moral realm and spiritual power proposed by Mencius, referring to a kind of great, upright, and pure spiritual state cultivated by people in the process of moral cultivation. Therefore, the meaning of "righteousness" mainly comes from Mencius's "lofty spirit", which is the embodiment of a moral realm and spiritual strength, and is one of the important values in the traditional culture of the Chinese nation.