I was surprised by this light on the painting on December 8, 2007, the Feast of the Immaculate Conception. It was what I had imagined for the concept of the painting.
The light was reflected, and refracted into colors of the spectrum, by the angular edge of a mirror on the opposite wall of the studio. It was encouraging to have this light appear just as I was trying to paint it.
Study for a Sanctuary Painting:
The original drawing.
The grisaille drawing on the canvas with charcoal.