The first sentence, "Tianmen interrupts the opening of Chujiang River", focuses on the magnificent momentum of the Chujiang River flowing eastward, breaking through Tianmen and rushing away. It gives people rich associations: the two mountains of Tianmen were originally a whole, blocking the raging river. Due to the impact of the raging waves of the Chu River, the "Tianmen" was opened, interrupting it and forming two mountains, the east and west.
The second sentence, "The clear water flows eastward here," in turn emphasizes the binding force and reaction of Tianmen Mountain, which is in confrontation with Jiajiang River, on the surging Chu River. Due to the confrontation between the two mountains, when the vast Yangtze River flows through the narrow channel between the two mountains, it stirs up swirls and forms a spectacle of turbulent waves.
"The green mountains on both sides of the strait come out facing each other, and the lone sail comes from the sun." These two sentences are an inseparable whole. The first sentence describes the majesty of the two mountains of Tianmen seen in the vision, while the second sentence reminds the foothold of "looking" and expresses the poet's vivid excitement. The poet is not standing somewhere on the shore looking at Tianmen Mountain in the distance. The point of his "looking" is the "lone sail" coming from the "sunside". Most people who read this poem appreciate the word "chu" in "The green mountains on both sides of the Taiwan Strait come out relative to each other" because it brings dynamic beauty to the otherwise static mountains. The word "out" not only vividly expresses the unique posture of Tianmen Mountain when "looking at Tianmen Mountain" during the boat trip, but also contains the fresh joy of the people in the boat. Tianmen Mountain, which faces Jiajiang River, seems to be approaching him, expressing its welcome to visitors on the river.
"The solitary sail is coming with the sun", which vividly depicts the scene of the solitary sail riding the wind and waves, getting closer and closer to Tianmen Mountain, and the poet's admiration of the famous mountain scenery and the longing for it.