First of all, "sunset glow" refers to the rosy glow or sunset glow at sunset, which means that when the sun is about to set, the sun scatters through dust and water vapor in the atmosphere, producing a series of colorful clouds. The colors of sunset glow are varied, from orange, pink to purple, and each sunset glow presents different colors and shapes, giving people a beautiful and changeable feeling.
"Variety" means that the sunset glow is varied and changeable. As the sun sets, the angle and intensity of light changes, and the reflected and refracted light interacts with the clouds to form a unique scene. The color of sunset glow, the shape of clouds and the intensity of light are constantly changing, which makes the scene of sunset glow varied and breathtaking every time.
"Painting the void" is to compare the change and beauty of the sunset glow to painting in the void. Void refers to the vast sky, in which the sunset glow is displayed like a beautiful painting. The changing colors and shapes of the sunset glow are like a painter sketching a beautiful picture with colors and lines in the void and rich brushstrokes.
This poem expresses the changeable beauty of the sunset glow through its description. It not only praised the magic and diversity of nature, but also expressed the poet's admiration for natural scenery and imagination of artistic creation. At the same time, this poem can also arouse people's concern for nature and the pursuit of beauty, so that people can cherish the changing beauty of natural scenery more in their daily lives.