Guzheng version of Mountain Flowing Water is one of the top ten ancient songs in China. It is said that Boya, a pianist in the pre-Qin period, once played the piano on a barren land, but Zhong Ziqi, a woodcutter, can understand that this is a description of "ambition in the mountains" and "running water with ambition". Boya was shocked: "Well, the child's heart is the same as mine." After Zhong Ziqi's death, Boya lost her bosom friend, broke the piano, and never played it for life, so there was a song of high mountains and flowing water. "High mountains and flowing water" is a metaphor for bosom friends and music.