The Teapot -- the hypershape, the metasyntactic variable of the third dimension, the shape of shapes, the sixth essence.

Away the distance, lost amongst the pipework; flashing in the ray-traced light on the peak of a jagged fractal mountain far below; hidden inside a locked chest in the deepest level of the dungeon, there, in those places, will you glimpse a teapot.

Part sphere, part torus, part tube; bounded yet infinite, convex yet also concave; a made object, a created shape, but somehow so organic... if the universe has a form, surely this is it.
Sorry, I don't know what came over me there. I think I'd better go and have a cup of tea...