Consider the walls of your church's worship space. Are they solid, or do they have windows? If they do, are the windows clear and simple, or do they depict biblical scenes in stained glass? Perhaps banners brighten up the vast stretches of stone. Few consider the role of the walls themselves in worship. After all, the seating arrangement often encourages your eyes to focus on the pulpit and the sacramental furniture, or perhaps an enormous pipe organ. Walls, it seems, have little, if any, impact on our worship experience.