'Treen' n. a generic term for small household objects made of wood. Derived from old English word 'trēowen', meaning wooden.
I love a good piece of modern treen, which this most definitely is. A wooden jigsaw in the shape of a heart, at first sight it looks easy to assemble. However, on closer examination the puzzle is significantly more difficult to solve. The heart is sliced in two, meaning it must be built in three dimensions.
It is, perhaps, emblematic of the complexity of human emotion. Whatever the case, it is another simple pleasure.