"at last I can send my messengers, wildgeese, homing to Loyang." Looking at the "flat tide, hanging sails, sunny sea and Jiang Chun" in front of me, the poet couldn't help but have a beautiful idea: I'll write a letter to let Hongyan, who has returned to the north, take it to his family in Luoyang and let them know my mood here and now. Tail couplet not only takes care of the first couplet, but also makes the objective scenery in the poem full of human feelings, and the original natural scenery also has human spirituality, telling people the beautiful feelings and wishes in the poet's heart.
If the jaw joint starts with the scenery, it leads to the neck joint with the beauty of form; Then it can be said that the neck joint is expanded from the induction of heaven and man, and the jaw joint is taken care of with the beauty of mind. After Wang Wan, the prime minister of the dynasty, Zhang said that the significance of writing "...Night now yields to a sea of sun and and the old year melts in freshets" in the office hall for people to study hard is probably not a purely artistic issue. Prime minister Zhang paid more attention to the life tolerance and mind expressed in this poem.