Art is often described in terms of the artist's expression made visible through representation. Turrell's work may be founded on his experience of the world, but its result, beyond abstraction, is reduced to the simple facts of our own perception and subjectivity in the face of the elemental condition of light. "My work is as much about your seeing as it is about my seeing, although it is a product of my seeing," says Turrell.
With a keen understanding of the science of perceptual psychology, Turrell explains that we make the shape and color of the sky. For example, the artist knows that our sense of the sky being the ceiling or a dome is really a function of how we perceive the sky in relation to its edges at the horizon. If the "horizon" is the edge of a cut made in the ceiling of a room or the rim of the bowl of Roden Crater, it generates a different impression of the sky than that which we are accustomed to seeing every day.
as Something Existent Perceptual
Turrell Interview by Julia Brown