His genius was filled with the mysterious sounds of nature, but transformed into sublime equivalents in musical thought, and not through slavish imitation of the actual external sounds. His composition of that night was surely filled with raindrops, resounding clearly on the tiles of the Charterhouse, but it had been transformed in his imagination and in his song into tears falling upon his heart from the sky.

Histoire de Ma Vie (1902-04), Vo. IV, p. 439