" I could say that sunlight penetrates, and that the sun, when it moves over a sculpture, is never a negative force. When falling over a panting...risk of the cracking of the painting... A shaft of sunlight... there is nothing like sunlight to render marvelous the work of art. But it cannot be used always because it might become a negative force. In the interior of a room, the sun penetrates to certain places and not to others. The sun is hot, it fades the colors and frames crack.
On the other hand, we can have a totally different light; a diffuse light, a light that comes from above.