Brief analysis: these two poems highly summarize the scene of "deep affection and friendship, mountains and rivers are hard to resist", the realm changes from narrow to grand, and the artistic conception changes from sad to heroic. "However, as long as China keeps our friendship, heaven is still our neighbor." It is inseparable to stay away from friends. As long as you are in the four seas, even the ends of the earth are just like neighbors. Showing friendship is not limited by time and space, it is eternal and ubiquitous, and the feelings expressed are optimistic and open-minded. So these two sentences have become immortal words to express deep affection and friendship among friends in Qianshan.