For Henry More, witchcraft served as an empirical confirmation of the existence of immaterial substances. Yet while he takes great care to make his reports as trustworthy as possible and argues against the claim that the effects of witchcraft are only the illusions of people suffering from melancholy, he almost completely ignores the possibility that such effects may be caused by natural magic.
In More's natural philosophical writings, discussions of magic are very much downplayed, as well. This may seem surprising, as a crucial component of More's metaphysical system is his doctrine of the Spirit of Nature, a sort of world-soul whose action is nonmechanical, vital, and magical.
The essay argues that this deeply ambivalent approach to natural magic is due to the fact that More uses traditional magical notions to supplement the shortcomings of mechanicism and at the same time tries to divorce these notions from the potentially problematic background from which they originated. In the end, the essay suggests, More's ambivalence toward magic is only one manifestation of a much deeper problem wherein he adopts an immanentist position while trying to avoid its more problematic, potentially pantheistic, consequences.