I beleive because I experienced it. I barely believed any of this up until I tried a Ouija board with friends. None of us were moving it, the thing was moving by itself. After that, we went to a beaten down house, that one of my friends parents use to live in. From there it only got more creepy and stuff.
After we walked out, we saw a ghost staring at us from about 15 feet away. Nothing was touching the ground below it, it was white, had aura floating around its body and stuff like that, it was a ghost.
A Ouija board is caused by
Ideomotor motion and has been determined by the scientific community to have no supernatural abilities whatsoever.
It works by the body creating unconcious movements to appeal, yet unaware to the users mental imput. That's why it only occurred after you waited a long period of time. After getting bored and assuming that nothing would happen, by someone who wanted 'something to happen', their muscles in their fingers began to cause the movement.
The first question when using a Ouija Board is "Is there a ghost in the room?", which it will either say 'Yes' or not respond. A unconcious movement in the direction of 'Y' or 'Yes' will cause all the users on it to move to the following letters. Another example is say a house was supposedly haunted by 'Jane', the users will know this and unconcious movements will produce this name- this has been used as a method of debunking a Ouija board by providing the name of a non-existant ghost and finding that it's name is spelt out using Ideomotor action.
The fact that the board appeared to worked (as it usually does) - since it's a psychological feat as opposed to ghosts, simply put you into a more receptive and freaked out state of mind. During times like this, anything can be interpretted as a ghost.
An example of this include a study when a normal house was said to be very haunted and a volunteer spent a night in it. Within hours he claimed that he had seen countless ghoulies and left, despite the building in reality being known as completely unhaunted as a part of a scientific experiment.
A 'psychics' self moving pendulum is another example of the Ideomotor effect.
I'm a skeptic on a lot of things unless I have proof. Ghosts, I strongly believe in, too many experiences with stuff that can't be explained to not believe that there is something there
Being a self proclaimed skeptic and believing in Ghosts is contradictory. There is no valid evidence to proove their existence, many reasons why they wouldn't exist and multiple scientific & psychological facts to easily debunk people's experiences with them.