Unfortunately the frequently recurring "supranatural" folkloristic motifs could suddenly
appear in the most macabre contexts. Those who believe that "supranatural"
phenomena reflect a "sick" imagination could be right in a gruesome sense.
Madness and paranoia as individual or collective conspiracy reveal a lot in
this connection. The human perception apparatus points to the abstraction
of the "marginal notion" as for instance in the synaptic organization of the eye's
nerves. By shifting or throwing off kilter the filters of perception one can explore
the "blind spots" and scotomas of a world view. (In a polarization experiment
with two polaroid sun glasses, "what we see" clearly changes in "observation thrown
off kilter" - a 45 degree rotation.)