The Mystery of the Double: Geographic Medicine
A certain portion of the earth's surface shows the closest kinship to these forces. If a person goes to this place, he enters their realm; as soon as he goes elsewhere, he is again outside their realm. For these forces are geographic; they are not ethnographic, not national, but purely geographic forces. There is a region where the force streaming up from below has the most influence on the double, and where, because with the outstreaming forces it enters most into kinship with the double, it is again imparted to the earth. This is the region of the earth where most of the mountain ranges run, not crosswise, from east to west, but where the ranges primarily run, from north to south (for this is also connected with these forces) where one is in the vicinity of the magnetic North Pole. This is the region where above all the kinship is developed with the Mephistophelian-Ahrimanic nature through outer conditions. And through this kinship much is brought about in the continuing evolution of the earth.