This is made of the very thing it represents. This represents the very thing of which it is made. Symbolic cannibalism, the Ourobouros myth made wood. Just as pop will eat itself so too does meaning applied to something rob it of the potential for meaning something greater. Perhaps someone at the wooden trainset factory cut this by hand from a sheet of half-inch pine with a coping saw, sanded it smooth, hand-stained it and painted it with three coats of clear lacquer. Maybe it was die-stamped and triple-dipped by machine. No matter. It's just a tree. And it's just a "tree." And it's "just a tree."