Note: I don't believe in Ghosts and most things that are discussed in this subforum.
I find this forums very ironic. Mainly because smart people don't believe in this superstitious crap. There are allot of unexplained things in the world, but this world is pretty much natural, just because you don't have a explanation for something does not mean you have to turn to supernatural as the cause.
The reason that you hold that point of view is probably because the people around you hold it and it was taught you in school.
Expecting other people to have the same world view is very popular and thinking that other people who have other beliefs than you are either less intelligent or otherwise bad people is done by a lot of people.
If you would open your eyes, you will probably find on both sides of the public debate a lot of people that are more intelligent than you by measures like IQ, EQ, money made in life or academic credientials.
Another issue that you will find on this forum is that people are often more attached to actual results than to beliefs about reality.
It doesn't matter whether you heal pain through a placebo or through a pharmaceutical.
When the process dealt with the pain, it gets used again next time.
Story's are powerful weapons that solve a lot of problems without them needing to be objectivly true.
In a typical sleep-paralysis episode
While there certainly are people who have that experience and misinterpret it, that explanation doesn't address a lot of the effects you see discussed in this forum at all (like Emoto's water crystals).