Ghosts are actually caused by me killing people faster than Death can process them.
Terry Pratchett, "Discworld".
Nice application though.
It gets worse.
Ghosts are Demons in disguise. And demons don't play by rules, they make them up as they go. That is why it is so hard to figure out what "Ghosts" are. Because they 'change'. It explains how they can be immaterial and still interact with the material univers at the same time, BTW
Seroiusly.
A Demon is, by definition, a Fallen Angel - an angel of God that CHOSE of his own free will to rebell against his Creator.
They cannot redeem themselves now, are lined up for destruction (Armageddon - a good time to look forward to, when evil is removed and good is left over) so they go making as much trouble as they want... for their fun of it.
They result in confusing the unknowing, and them drawing away from God, Which is what the original Slander was - that man would not put faith in God when under test.
Belive it or not, it explains a lot, huh?
I can prove this by references if you wish, but can't be bothered getting into a bible-bashing fight with those who disagree. please take it or leave it, but don't hijack this thread and make it about whether God exists or whether the what the Bible says is truth. This forum is about Ghosts, this is my opinion, I will add references of someone asks, but let that be it.