The Blue Cliff Record A Book by Yuanwu Keqin, Thomas Cleary & J.C. Cleary www.shambhala.com Mountains are mountainsNo door at which to knockThe miraculous bones of the ancientsWhat did you see when you were there?I have pacified your mind+2 More zeneuphony
Truchet Tiles Truchet tiles are square tiles decorated with patterns that are not rotationally symmetric. When placed in a square tiling of the plane, they can form varied patterns, and the orientation of each tile can be used to visualize information associated with the tile's position within the tiling. Wikipedia en.wikipedia.org The Tiling Patterns of Sebastien Truchet and the Topology of Structural HierarchyWang tiles graphicsart