Well... we are all - mystics, philosophers, artists, physicists... and light bulb fabricators - we are all in the dark about light... and of course... to top it off, light is invisible! You see, light in the world of mysticism and philosophy... becomes the cloak of the Godhead ... In physics, light becomes nothing less mysterious. You have all sorts of theories about it... is it a particle or a wave? There is always this very intriguing ambiguity... in light itself.
- Juan Geuer, artist, from his 1994 interview in the stained glass magazine Leadline.