The ancients wrote poems and paid attention to the refinement of words. What makes the whole sentence of Youlong dance is the so-called "poetic eye". It can be the most refined and vivid word in a poem or a poem, or it can be a wonderful sentence that reflects the theme of the whole poem. When we appreciate classical poetry, if we can start with "poetic eyes", on the one hand, we can appreciate the hardships and joys of the poet's creation, on the other hand, it is also a key to understand the thoughts, feelings and artistic techniques of poetry.