[Long post, sorry.]

I have a friend who likes to live on the edge & has a number of ghost stories. He's a balance of open mindedness & scientific logic - this guy basically has no fears because he actively confronts them since he doesn't think it's rational to keep them. Rafe isn't one to lie or exaggerate either, so it's hard for me to know what to do with some of the information he gives. I have some loose theories that might be interesting to discuss.

There's a graveyard Rafe & his friends like to visit late at night. There have been rumors of ghosts in white frequenting the area, & they happened to see one. As the story was told to me, they use headlamps that let you create a shadow by pointing so you can show things to one another. Out of the six people there two could see her clearly, two could sort of see her, & two didn't see her at all. It wasn't until someone pointed her out that the dress flared out from behind the tombstone & the whole group could see the apparition. Theoretically you could argue some may have different kinds of receptors or processing centers to perceive such apparitions.

Another time Rafe & a few others had another encounter while at the same graveyard. Basically they 'ran' past & there was a gust of wind that could be felt. So one could argue there is some kind of energy - though how it manifests & so forth naturally is unclear.

I know people are going to want to dismiss this, but I think it's something worth exploring. Of course this is coming second hand, but objectively speaking he's a fairly reliable source (in my opinion which probably means nothing to you guys as well). Obviously there is something more to some of these types of stories, sort of like how some acupuncturists work & others don't when you look at the literature. Unless you are assuming these are all sensory hallucinations. Which seems unlikely though in some cases it may be an apt explanation. Understanding what makes the groups different I think is much more difficult.