What emotions are expressed in the last two sentences of the poem "seeing each other off"?

Send sb. out/away

The guest's heart has been missed,

A lonely journey is worth a thousand miles.

Black rain is coming,

The waves and the white wind began to rise.

He expressed his deep feelings of parting and his inner loneliness and sadness. Three or four sentences not only tell the real scene on the river when we parted, but also tell the scenery, which is symbolic. Suddenly, the river was covered with thick clouds, and the haze hung over the river, and a rainstorm was coming; "The rain is coming and the wind is full." When the wind blows, the river suddenly surges with white waves. This scene of dark clouds and vast smoke waves coincides with the poet's mixed feelings and melancholy feelings at the moment; The coming storm is not only the externalization of the poet's surge of emotion, but also vividly symbolizes and indicates that what awaits him in the journey will be endless difficulties, obstacles and severe tests like the wind and rain on the river. ...

Poems such as farewell are usually based on feelings, or farewell, or encouragement, or encouragement, or wishes. Try to see how many such articles are in The He Shen Collection. For example, A Farewell to Jiang Chang: "An De Sheng Yu, from Jun to Wan Xu?" Farewell to Wei Sima: "Don't repeat the old ones when you discard them, but sigh when you repeat them." "Don't be a teacher": "I hope you love yourself deeply, and it's useless to be sad again." Farewell at night after parting: "Don't drink when you are sad. When can we be together?" "Chu in Cao": "I wanted to live together, but now I fly back." This is He Xun seeing his friend off. As for his friends who stayed to see him off, it's like "The History of Farewell": "A thousand miles away without a feather." There is a cloud at the end of the three poems in Xiang Song Lian Sentence: "A thousand miles at a time, tears flow three times." "I hope all the children will stop driving and watch me solve the problem alone." "With my tears, I bid farewell to your clothes." Without exception, the themes are lyrical. It's just that this song ends with a scene, not only to write a real scene on the river, but also to contain feelings in the scene, which is integrated with things and me. The meaning of Bi Xing is endless and intriguing. It is unique. Chen Ruoming commented on He Shi's poem "strategizing, but taking God." ("Selected Ancient Poems of Caijitang", Volume 26) Shen Deqian also called it "Love words turn around, shallow words are deep." (The Source of Ancient Poems 13) refers to this kind.