Why are some religions so closed minded to ghost hunting?

[Johnny]

Today youll learn something new,lets say an apparition is real and legit, There are some things called fallen angels, or in other words demons, all those poeple who say they say they saw their dead relative, they talked to thier grandma who passed away(or whomever), they are demons pretending to be persons,the bible says that the devil has power too, and confusing people into believein something bad is good is his best strategy. so lets not be close minded of all that, some of that is charlatanism but some of it its true, but lets never think they are persons or ghost, when someone dois they go to hell or heaven, they dont stay on earth, they are just demons. Is like people who play the ouji board to talk to their dead relative.. who do you think they are truly talking to?