James Turrell – ‘Through light, space can be formed without physical material like concrete or steel. We can actually stop the penetration of vision with where light is and where it isn’t. Like the atmosphere, we can’t see through it to the stars that are there during the day. But as soon as that light is dimmed around the self, then this penetration of vision goes out. So I’m very interested in this feeling, using the eyes to penetrate the space’.