What kind of artistic conception does the Chinese painting "Fishing Alone in the Cold River" show?

The author of the painting "Fishing Alone in the Cold River" drew a gondola with strict iron lines. An old man leaned over to fish, and the waterline was scratched with light ink, leaving a blank all around. The painter painted very little, but the picture was not empty. On the contrary, people feel that the river is vast and chilly. And I feel that there is a kind of interest in the blank space that is difficult to express in words. Whether it is empty silence or depressed indifference is really puzzling. This poetic and intriguing realm is the product of the combination of the painter's mind and nature, and the result of the combination of reality and reality in art.