The phrase "the snow in winter reflects the sky, and silver covers everything" uses imagery and rhetorical devices to depict a winter scene. The phrase "the snow reflects the end of the world" indicates that auspicious snowflakes are falling in the vast sky, giving people a peaceful and beautiful feeling. "Silver" describes the whiteness of the snowflakes, covering the earth in a layer of silver, bringing a sense of purity and tranquility to the whole world.