Quite a lot of legends and perception techniques describe darkish non secular or supernatural entities in addition to varied shadow creatures which have lengthy been a staple of folklore and centuries outdated ghost tales. Whereas some physiological and psychological situations can account for experiences of shadow folks, paranormal researchers do not all agree on whether or not or not they're evil. Some even speculate that shadow folks will be the extra-dimensional inhabitants of one other universe. One factor is for positive although, hundreds of sane persons are reporting darkish, menacing apparitions lurking over them whereas sleeping and leaving them in a paralyzed state frozen with concern. Is that this some new psychological phenomenon or intruders from another nefarious dimension?