The cardinal points of the inner landscape. These are certain ideas which have a history and can be re-engaged at will  dependably producing a stream of related ideas usually containing something new which becomes added to that history. They are the mind's chief narratives, and they survive because they are believed in, or because something in them, which cannot yet be separated out is believed in. Their ability to be repeated is more important than their content since it implies the existence of a solid and invisible supporting structure. Nevertheless these points are only their content and this grows worn and then frays and dissolves; and then the supporting structure is seen to have been no more than a dream. All that remains is a dark sense of the space those structures would have inhabited, from where they would have drawn their reliability.