Reathro II, are extensions of the Mattress Factory's permanent pieces: Catso, Red, a Cross-Corner Projection, and Danaë, an aperture piece, or Space Division Construction, in which light is viewed through a shape cut out of the wall. There is a place on the floor, marked with an X, that is the ideal place from which to view both Afrum II and Reathro II.
According to Turrell, this work and James Turrell is one of the most celebrated American artists working today. Born in California in 1943, he grew up with an enduring love of aviation and the sky, as well as a fascination with light. His Quaker background also substantially formed his approach to life and art, with its emphasis on silent access to the "light within." From age six, Turrell was urged by his grandmother to "go inside and greet the light" at Quaker meetings. In the early 1960's, Turrell studied perceptual psychology at Pomona College, taking additional classes in other scientific disciplines, such as mathematics, geology and astronomy.