This sentence comes from the lesson of Guilin landscape.
2 The meaning of this sentence:
When people travel in a world of painting, they mean, "We take a boat to roam on the blue waves and see the beautiful scenery on both sides, as if we were touring in a beautiful painting." .
3 "Pictorial World" article on the role of people on the blue waves in travel
"Sailing above the blue waves, people roam in the picture world" is closely related to the first paragraph of the text, "We paddled the Lijiang River and enjoyed the landscape of Guilin", and the second paragraph of the text, "The microwave excited by the paddle radiates a series of waterlines, which makes you feel that the ship is moving forward and the shore is retreating". It can be said that the poem at the end is the continuation and summary of these two sentences, which makes the structure of the full text very compact and complete.