All corners of the country are brothers. What does Qian Shan always mean?

My brothers and sisters are friends everywhere. Even though Qian Shan is far away, it is hard to give up that feeling. All corners of the country are brothers, and I sent Si Liu two songs, one of which is Qian Shan, who is always in love. Tang Zhangqiao sent an old friend in Weiyang. All corners of the country are brothers from The Analects of Confucius and Yan Yuan, and Wan Shui Qian Shan always loves Zhang Ji from Qiu Si in the Tang Dynasty.