The letter from Dongting Lake to Prime Minister Zhang expresses the poet's political ideal and his depressed mood of longing for support and appreciation. The whole poem depicts the vast scene of Dongting Lake, which sets off the poet's enterprising spirit and shows his political ideal of serving the country.

The full text of Dongting Lake's letter to Premier Zhang: The August lake here is the same as the sky. Ozawa's water vapor transpiration on the cloud soil is white, and the waves seem to shake the whole Yueyang. I'm going to cross the water to find a boat and paddle. It's a shame to return home in the sacred age. Sitting around watching other people's hard river fishing can only envy the fish caught in the fish.

Translation of a letter from Dongting Lake to Premier Zhang

In autumn, the lake is almost equal to the shore, and the lake and the sky look confused and integrated. Yunmeng Ozawa braved the white water vapor, and the surging waves seemed to shake Yueyang City. I want to cross the sea, but I don't have a boat. Don't live in an official position, be ashamed of being a saint. Sitting and watching how carefree the fishermen are, it's a pity that they can only have empty thoughts.