You know it's an object, but your eyes, assaulted by fractured reflections of the room, don't agree. Your percept stutters with incessant double takes. Is this pleasant? It is if you surrender to it, accepting with fascination, the humiliating faultiness of human perception. Seeing that you don't see and knowing that you don't know, you are flooded with an awareness of reality beyond your conscious grasp. Actually, any successful art may bring about something like that."
Peter Schjeldahl about the Light and Space artists in L.A. from the late sixties