What is the profound connotation of the sentence "We wonder if this journey to the west will never end" in Shu Dao Nan?

"We want to know whether this road to the west will never end", which reveals the theme of the gift series. The author didn't say something like a farewell poem, but inserted "When will you come back?" This reflects that it is not easy to come and go. This sentence itself has also become a description of the difficulty of Shu Dao.

Shu Dao Nan is the masterpiece of Li Bai, a great poet in China in the Tang Dynasty. There are 294 words in the poem, which expresses the difficulty of Shu Dao with the danger of mountains and rivers, giving people a thrilling feeling and fully expressing the poet's romantic temperament and feelings of loving the motherland. There are many hidden pictures in the poem, whether it is the height of mountains, the urgency of water, the improvement of rivers and mountains, the desolation of trees, or even the danger of peaks and cliffs, all of which are threatening. Its magnificent weather and vast realm are beyond others' reach. As Shen Deqian, a poetry critic in the Qing Dynasty, said, "The strokes are vertical and horizontal, such as flying, and the fingers are like thunder." At present, this article is included in the fourth Chinese lesson (compulsory 3) published by People's Education Publishing House.