It's very much a reality. I've been researching the likes of this topic, as well as many other Pseudoscientific theories for the better half of eight years. Probably my first and only conclusive sighting was back in 2009, on a property off the N7, at about 2:45AM. That's pretty much all I can elaborate on for now, due to the fact that such topics, even in today's age, which include the purpose of Souls, Astral Projection, Telepathy etc, all challenge the very rationale of the average mind, leading to immediate dissociation from and by receivers, without any regognition of actual events and personal experiences.