From the focus of cult, we now move on to the area in which rites take place. It is a fact of geography that edges are easier to observe than centres and the result is that a number of the natural, god-given, loca­ tions for cult are marginal. These include the hills and mountains that in fact divide one landscape from another, as well as the points where land runs out altogether, such as shores and, posing the problem more acutely, offshore islands. Finally, in mountains and at shores, we find caves.