@BlueSkyKing they are energy fields. There are devices which is used to detect them. Spirit box, thermal imaging camera, emf meter, motion sensor. I know many on youtube fake these to get views and earn money and it is hard to trust as nowadays video editting is available and all sorts of other tricks. It doesn’t has a body, and we have not experienced paranormal things. So we will always doubt I guess. But I do keep an open mind. Even if we see some genuine video. We may not regard that as a proof.

@BlueSkyKing In the above video, there is also poltergeist activity. He aggressively throws things.