On days such as this, when the fog has settled on the hill top, one begins to understand how fog is such a powerful element in myth and story.  One knows perfectly well that the outside world exists, the road is still there, the paperwork is still there, yet the physical world beyond the fog fades.  Not into darkness as at night, but into an unreachable state.  Nothing seems to exist but the here and now. 

Rather pleasant in a way.  Here this sort of fog really only happens in the winter during warm, wet spells and can last for quite some time. of course it also means Mud.