Quote from : Father Book

...listening with absorbed attention more to her voice than to what she was saying, and thinking how like she was, flowering through her voice into beauty in the darkness, to some butterflies he had come across in the Swiss mountains the summer before. When they were folded up they were grey, mothlike creatures that one might easily overlook, but directly they opened their wings they became the loveliest things in the world, all rose-colour or heavenly blue. So had she been to him in the daylight that afternoon,--an ordinary woman, not in any way noticeable; but now listen to her, opening into beauty on the wings of her voice!