What does it mean to bury loyalty in the castle peak and dye the red flag with green blood?

After the heroic sacrifice of the soldiers, the mountains and plains are good places to bury the righteous, and the blood has dyed the national flag red and turned it into a red flag.

According to the weather network query, it means that after the heroic sacrifice of soldiers, Shan Ye Green Field is a good place to bury the righteous, and the red flag is dyed red with blood and turned into a red flag. It means that after the heroic sacrifice of soldiers, Shan Ye is a good place to bury the righteous, and the national flag has been dyed red with blood and turned into a red flag.

Meaning refers to the explanation of the essential characteristics of a thing or the connotation and extension of a concept.