Yes, I've had an experience lately, but before I state that, I want to say good video, Misfit. Some of those may be real spirits. I'm more skeptical of faces in smoke because whenever you look at smoke pictures (e.g. war picture of Israel with Hamas) one can see countless faces as the billowing smoke changes shape. I think our minds tend to find such images as it is a known psychological mechanism. I know I see lots of faces in things all the time, even in my floaters :D Also, the pictures of the orbs can be cold plasma, a cousin to ball lightening, or even dust. I can go out in my backyard at night and photograph orbs at any given time, but they are not supernatural. There's an interesting site call
http://www.orbstudy.com that even has experiments in making them!
All that being said, I do believe that some of those pictures in the video may have been manifestations, such as the white streak above the person in the hospital bed, and the frames were still shots taken about one second total time.
That reminds me, at work I saw a black streak move across the hallway from the manager's office, and two other technicians saw it in their room at different times. I always believed that the place was severely haunted, and others believe that as well. I wish I could say more about the black streak, but what I can say is that it was FAST and NOT in my peripheral vision, but right in front of me where there was no glare either from my glasses or any other light source. I even tried to duplicate the phenomenon by duplicating my movements but could not. Sometimes I see things at the sides of my eyes and find it is an optical distortion from my glasses or something in my peripheral vision that if I duplicate the move I see it again. But in this case, I could not. So one has to be careful. I am not adamant that this was a manifestation of some sort, but I keep an open mind.
What are they? My personal belief is that they are poltergeists, shadow people or whatever one wants to call them. And a poltergeist is none other than a demon in paranormal jargon. When quoting the bible, I often use Satan/demons and poltergeists interchangeably so that this generation understands since the idea of devils and Satan is downplayed, but they understand a poltergeist and its unimaginable power. The fallen angels in Genesis 6 mated with human women and created hybrids (and in apocryphal literature they are called "Watchers"). If this sounds far-fetched, then consider stories today about the "Hat Man" spirit that "watches" people (usually in their dark bedroom), poltergeists (and where do they hang out? usually teenage girls or young women), and "alien reproductive experiments" and the incubus and succubus legends. Even Jesus said "as in the days of Noah"---- and what happened then? The sons of God came unto daughters of men. Creepy. There may be FAR more to this ghost stuff than meets the eye. Although people have varying opinions, I like the demonologists Loraine and Ed (now deceased) Warren. Lots of creepy stuff happened to them in their investigations.