Ambiguity inspires curiosity in Joshua Jackson’s photograph of a young man caught at an instant of reflection. The setting is a London museum but the stone pillars, the wooden crosses, the ethereal light, the dark arch at the end of what looks like a nave make us wonder if it’s a church, and if so what kind of church it might be. Is the solitary subject in the midpoint of the image deep in thought or prayer or in place where prayer and thought are the same?