How does Lars Gustafsson use imagery in Greatness Strikes Where It Pleases?

Gustafsson uses vivid imagery to convey the boy's true capabilities, artfully combining images of motion and stillness, and alternating between the vast and the minute, "from the galaxy to the unborn fetus", he invests the severely retarded, obese man with a massive dignity, a greatness even, by placing him in harmony with the great rhythms of the cosmos and with its inscrutable mysteries and purposes. By moving his chair, so slowly, so awkwardly, with such difficulty, to ensure that he always stays in the sliver of sunlight that illuminates the floor of the dayroom, he becomes, in spite of his big, cumbersome body, a tiny part of the eternal cosmic dance.