Numerous myths and belief systems have long featured dark spiritual or supernatural beings, along with various shadowy figures, as central elements of folklore and ghost stories that date back centuries. Although certain physiological and psychological conditions might explain encounters with these shadowy entities, paranormal experts remain divided on whether they are malevolent. Some even theorize that shadow people could be beings from another dimension. What is undeniable, however, is that thousands of otherwise rational individuals report seeing ominous, dark figures hovering over them during sleep, leaving them paralyzed with terror. Could this be a new psychological phenomenon, or are these intruders from a sinister alternate dimension?