This poem was written in the autumn of the 28th year of Emperor Gaozong's reign in Shaoxing (1158). Lu You was 34 years old and on his way to Ningde, Fujian. When he became an official for the first time, when the peace faction was restraining and the war faction was making achievements, the poet was full of confidence in his future. Taking the road from Yongjia, passing by Ruian, rafting on the calm Ruian River, facing the blue sky above the river, one can't help but think of the career he is about to embark on, which is as wonderful as Penglai Wonderland. The poet hoped that like-minded people would help him and give him an opportunity to display his talents and serve the country, so he wrote this poem.