This article drew together recent work by the artists Bill Viola and Rupert Newman. They had each produced work that asked similar questions about spatial textures and meanings, using light as the primary material.
Light and colour have always been an important trope in Christian art and allegory; illiterate medieval congregations would have looked at the stained glass images to decode the Latin Mass they were unable to understand. Projection mapping connects the digital to the physical, and in Rupert Newman’s light projections, to the spiritual.
You can read the full piece here.