"Xun Huan", quoted from Shuyi Zhuan in Volume 63 of "Gathering Arts and Literature", said: "(Xun Huan), resting on the swan crane tower in the summer, looking at something in the southwest, fluttered down from the Yunhan, and arrived in the second half of the sky. He is the guest of the crane. When the crane stops at the door, the immortal takes his seat, wearing feathers and rainbow clothes, and the guests and guests are happy. When he leaves, he flies across the crane, and the smoke disappears." Huang He Tower by Tang Cuihao Poem: "People in the past have gone by the Yellow Crane. Here is the Yellow Crane Tower. Once the Yellow Crane has gone, it will never return. The white clouds will be empty for thousands of years.". Later on, he used the metaphor of "being like a yellow crane without trace". Lu Xun's Wandering Brothers: "'Did the director arrive at the bureau yesterday?' 'Still there was no such thing as a crane.'" Guo Moruo's "Revolutionary Spring and Autumn: Leaving Chiang Kai shek