The Torah She'bicsav and Torah She'ba'al Peh discuss sorcery/necromancy/witchcraft. Assuming that those activities were actually harnessing some sort of supernatural power in order to perform supernatural activities, do such things exist today?
I am mainly interested in explicit sources discussing this topic or sources that implicitly imply that such powers still exist (and are accessed) in the past thousand years or so.
would just like to add that I have witnessed real examples of this stuff personally.Regarding your supernatural experiences, see http://www.livescience.com/14904-paranormal-experiences-hint-ghosts.html – mevaqesh Jul 29 '16 at 17:23Nevertheless, even he concedes that such things do exist even today? Of course a mystic would believe in the presence of mystical phenomenea. This sentence would make more sense if it said something likeR. Yihya Qafih z"l devoted his life to rooting out superstition but nevertheless even he concedes that such things do exist even today. – mevaqesh Jul 29 '16 at 17:35