It means: There is a sense of righteousness between heaven and earth.

From "Song of Righteousness" written by Wen Tianxiang of the Southern Song Dynasty: There is righteousness in the heaven and earth, and they are mixed and endowed with manifolds. Below are the rivers and mountains, and above are the sun and stars. To others, it is called Haoran, which is so abundant that it blocks the sky. The imperial road should be Qingyi, Hanhe Tumingting.

Vernacular translation:

There is an upright air between heaven and earth, which gives all things and transforms them into various shapes. Below it is represented as mountains, rivers and mountains, and above it is represented as the sun, moon, stars and stars. In the human world, it is called the Qi of Haoran, which fills the heaven and earth and the universe. During the Qingming period, which was a peaceful period for the country, it presented a peaceful atmosphere and an enlightened court.

Extended information

Creative background

Wen Tianxiang was captured by the Yuan army due to betrayal by a traitor in October of the first year of Xiangxing (1278). In October of the following year, he was transferred to Yanjing. The rulers of the Yuan Dynasty used soft and hard tactics on him, including threats and inducements, and promised him a high position. Wen Tianxiang was unyielding and determined to serve the country with his life. He was imprisoned for three years and was imprisoned for three years until December 9, 1283. March 9) died generously. This poem was written in prison a year before his death. ?

Baidu Encyclopedia-Song of Righteousness