The "Xing" of "Xiangxing" comes from the development of "Xing" in Bixing, but it is different from the "Xing" in Bixing, which has another meaning and refers to a kind of implicit and euphemistic poetry. "The text has done its best, but it is also prosperous." Preface to Zhong Rong's Poems in Southern Song Dynasty.
"Image" refers to objects, including scenes, images of things or pictures of life. Generally speaking, it refers to the images depicted in poetry. "Image" is the external image of poetry, and "Xing" is the deep meaning and emotion contained in the image. The combination of the two forms the "Xing" concept of the poets in the Tang Dynasty, which has become a high artistic realm.
The theory of "looking at the stars" shows that the poets in the Tang Dynasty grasped the artistic image from paying attention to the perception of appearance to the exploration of inner spirit.