During the past three years I have spent quite a bit of time in a rented house in Provence. Volets Bleus is a rectangular breeze-block bungalow perched on the side of a hill. In front of it is a tiled south-facing terrace resting on concrete pillars. The terrace looks over the tops of the trees that grow out of the valley floor, and further out over a commercial vineyard, and then to a distant line of oak-forested hills.