This explanation appeared in Wu Shan Gao, one of the two publicity songs of Fu Gong led by Tong. The poem borrows the allusions from Wushan Yu Yun, while Chan Juan represents the mysterious goddess in the prosperous Tang Dynasty. No matter ordinary readers or literary researchers, most of them agree that Shan Juan is a beautiful woman. What about the other two?
The second explanation refers to good posture.
This explanation comes from the first of "Two Poems of Wandering Immortals". The original text is a new painting of a moth eyebrow, the peerless Chanjuan, who fights away from the flower mother. This poem means to dress up before going to grandma's side, which is to describe a beautiful gesture. The last explanation, similar to the second, refers to beautiful objects.
This object includes the moon, praiseworthy things and so on, and this explanation is also one of them, which comes from the tenth of Eleven Bamboo Poems. In this poem, Chanjuan represents bamboo, and in other poems, Chanjuan represents flowers, plants and so on.
The third explanation is the moon.
In the understanding of the ancients, the moon has many meanings, just as Su Shi wrote in his poem: "People have joys and sorrows, and the moon has a round and round lack." There is still a gap when the moon is not round, so it symbolizes parting, and when it is round, it symbolizes reunion.
According to legend, there lived a beautiful fairy named Chang 'e on the moon. So when poets see the moon, many beautiful images come to mind. They call the moon Chanjuan.
Tracing the origin of "Chanjuan"
Tracing back to the word "Chanjuan", it was written as "cicada fly", which appeared earlier in Zhang Heng's "Xijing Fu" in Han Dynasty: "Chewing merchants want to change, increasing cicada flies." Cicada, Zhizi and Cicada can be interpreted as graceful gestures; Worms, the way worms bend and wriggle when crawling. "Parallel", an ancient book, refers to a bug without feet. Therefore, "flying cicada" means "beautiful posture". Shan Li explained that flying cicada, with its gorgeous appearance, also means this.
Later, people gradually used "cicada fly" (Chanjuan) to refer to beautiful things, and gradually evolved to refer to beautiful women and describe their elegant and dignified behavior.
In the Tang Dynasty, Fang Gan sang "Only teach parrots to call peach leaves and send Chanjuan to sing bamboo branches." Chanjuan means beautiful here. It is interpreted as a young woman with a soft figure, exquisite curves and elegant manners in Jing Ya.
Reference to the above content: Baidu Encyclopedia-Chan Juan