A belief in the supernatural has existed in all ages and among all
nations.To trace the origin of this belief, the causes of the various
modifications it has undergone, and the phases it has assumed, is,
perhaps, one of the most interesting researches to which the mind can be
given,--interesting, inasmuch as we find pervading every part of it the
effects of those passions and affections which are most powerful and
permanent in our nature.