Aliens and the Unseen

Is it possible that shadow people, spirits, poltergeists, and other enigmatic entities are rooted in reality? These strange beings have appeared in ancient texts and folklore worldwide, hinting at a more profound significance to this phenomenon. Could it really be that these otherworldly visitors coexist among us, crossing over from unseen dimensions into our world? And if so, could extraterrestrial visitation originate not from other planets, but from these unseen realms within our reality?