Cang Yue was a famous contemporary fantasy novel in China. Her works often involved fantasy, martial arts, science fiction and other elements. " Seven Nights Snow " was Cang Yue's masterpiece. It told a story about time and space. There wasn't a specific poem in Seven Nights of Snow, but Cang Yue quoted some poems in the novel. The most famous ones were " When will the moon be bright? When will I ask the blue sky about the wine?" and " I want to ride the wind and break the waves. Sometimes, I will hang the clouds and sail straight across the sea." Among them," When will the moon be bright? Ask the blue sky about the wine?" was a line from the poem written by the female protagonist Su Ying in the novel, which was used as the opening confession of the novel. " I want to ride the wind and break the waves, and sometimes I will hang my clouds and sail across the sea " was a line from the poem written by the male protagonist, Li Lingxiao, which was used as the ending confession of the novel. Cang Yue used these poems in her novel to construct a world full of imagination and mystery through the description of time and space.