"The tower is lost in the fog, the moon is lost in the river, and the peach garden is nowhere to be found. It is worth mentioning that the lonely pavilion is closed in the cold spring, and the sunset is in the sound of cuckoos. The plum blossoms are sent to the post, and the fish pass on the ruler, and this is built with no regrets. "Chenjiang is lucky enough to go around Chenshan, but why do you want to go down to Xiaoxiang?" This poem "Traveling on Shasha" was written after Qin Guan was demoted from Chuzhou to Chenzhou in his later years. "It is worthy of the cold spring that the solitary pavilion is closed, and the sun sets in the sound of cuckoos." The poet consciously organically combined the original symbol of cuckoos with the image of dusk. He was alone in the "lone pavilion" and suffered the "cold spring", and heard the sound of cuckoos in his ears. The cry of "It's better to go back" and the deepening dusk of the setting sun in his eyes made the author feel cold both physically and mentally. The poet's pen and ink are full of sadness and sadness. The loneliness when he was demoted to Chenzhou and the dissatisfaction caused by repeated demotions are well confirmed in this poem. This poem best represents his sad mood in his later years.