circle of light

I lived in that circle of light, in great speed and utter silence. When the swans passed before the sun they were distant—two black threads, two live stitches. But they kept coming, smoothly, and the sky deepened to blue behind them and they took on light. They gathered dimension as they neared, and I could see their ardent, straining eyes. Then I could hear the brittle blur of their wings, the blur which faded as they circled on, and the sky brightened to yellow behind them and the swans flattened and darkened and diminished as they flew. Once I lost them behind the mountain ridge; when they emerged they were flying suddenly very high, and it was like music changing key.

-- Annie Dillard Teaching a Stone to Talk