Swan Lake is sparkling, as quiet as a mirror, as green as a flawless jade; Swan Lake has clear water and no worries, and its face is wrinkled by the wind. When a refreshing breeze blows, ripples appear on the lake, and weeping willows dance on the stone embankment, showing off its charming and heroic posture.
Four species of white swan distributed in the northern hemisphere have long been known. Because of their white feathers, graceful posture, touching voice and loyal behavior, the eastern and western cultures in Eurasia invariably regard the white swan as a symbol of purity, loyalty and nobility. In ancient China, swans were called devils, Hongze, cranes, Honghu Lake, white cranes, orioles and yellow cranes. Many place names still contain these words, such as Yanmenguan, Guling, Hu Ze and Yellow Crane Tower. Today, some places are still important channels for geese and other geese to migrate. There is a record in The Book of Songs that Bai Niao is white and fat. So far, "Bai Niao" in Japanese refers to swan. The word "swan" first appeared in Li Shangyin's poem "Draw a string to warn the fire phoenix and brush a swan with a horizontal fan" in the Tang Dynasty.