Bill Viola, Night Vigil, 2005/2009, Color rear-projection video diptych, two large screens mounted on wall in dark room, Overall projected image size. 6 ft 7 in x 17 ft 4 in (2.01 x 5.28 m), Room dimensions variable, 9.20 minutes, Performer Lisa Rhoden © Kira Perov, courtesy Bill Viola Studio