"A solitary sail will eventually have a sunrise", the research object is "a solitary sail", the state of motion is "coming", and the ship is moving, relative to the ground (or both banks and green hills).
This poem is taken from Looking at Tianmen Mountain. Looking at Tianmen Mountain is a four-line poem written by Li Bai, a great poet in the Tang Dynasty, on his way to Jiangdong in 725 AD. This poem describes the poet's boat sailing down the river and looking at Tianmen Mountain.
Extended data:
Poetry appreciation:
Tianmen Mountain is facing Jiajiang River, and it is inseparable from the Yangtze River. The first two sentences of the poem start with the relationship between "Jiang" and "Mountain". The first sentence, "Tianmen breaks the Chu River", closely follows the topic and goes all the way to Tianmen Mountain. The key point is that the Chu River rushing eastward breaks through the majestic momentum of Tianmen Mountain.
It gives people rich associations: Tianmen Mountain and Tianmen Mountain were originally a whole, blocking the turbulent river. Due to the impact of the surging waves of the Chu River, Tianmen was knocked open and interrupted, becoming two mountains. This is quite similar to the scene described by the author in "Song of Yuntai in Xiyue to Send Dan Qiu Zi": "Genie (river god) roared and broke two mountains (referring to Huashan in Hexi and shouyangshan in Hedong), and Hongbo sprayed into the East China Sea."
But the former is hidden and the latter is obvious. In the author's pen, the Chu River seems to be a thing with strong vitality, showing the magical power to overcome all obstacles, and Tianmen Mountain seems to quietly make way for it.
Baidu Encyclopedia-Wangtianmen Mountain