Book excerpt: One of the great visionaries and pioneers of modern architecture, Le Corbusier was a master of light, declaring it both a fundamental basis of architecture and the key to personal well-being. In this portfolio of 160 photographs taken over 40 years, Henry Plummer captures Le Corbusier's inspired use of natural light in three of his greatest achievements: the small pilgrimage chapel at Ronchamp, the Dominican monastery of Sainte Marie de La Tourette, and the parish church of Saint-Pierre in Firminy-Vert, all in France. In these modest religious works Le Corbusier deploys light to create enchanted, emotionally charged spaces wedded to the cosmic rhythm of sunlight and season. Cosmos of Light reveals how the artist reimagined sacred space and charted new ways that buildings can both reveal and inhabit the universe around them.