The demon wants your soul in exchange and it will destroy you eventually. You'd be quite foolish to do so.
Miracles happen every day. You're alive, aren't you? God could've let the devil take you away from here a long time ago. Even though you're not a believer, you still have breath in your body. I assumed you knew the spirit world was real since you have been making these threads.
Me being alive is thanks to my parents. Not to some god or miracle.
You are rather loose with your use of the language.
As to the spirit world, that is hardly the spiritual world of the mind.
Gnostic Christians follow the better thinking of the ancient intelligentsia.
I hope you can see how intelligent the ancients were as compared to the mental trash that modern preachers and theists are using with the literal reading of myths.
https://bigthink.com/videos/what-is-god-2-2
Further.
http://www.pbs.org/moyers/journal/03132009/watch.html
Rabbi Hillel, the older contemporary of Jesus, said that when asked to sum up the whole of Jewish teaching, while he stood on one leg, said, "The Golden Rule. That which is hateful to you, do not do to your neighbor. That is the Torah. And everything else is only commentary. Now, go and study it."
Please listen as to what is said about the literal reading of myths.
"Origen, the great second or third century Greek commentator on the Bible said that it is absolutely impossible to take these texts literally. You simply cannot do so. And he said, "God has put these sort of conundrums and paradoxes in so that we are forced to seek a deeper meaning."
Matt 7;12 So in everything, do to others what you would have them do to you, for this sums up the Law and the Prophets.
This is how early Gnostic Christians view the transition from reading myths properly to destructive literal reading and idol worship.
https://www.youtube.com/watch?v=oR02ciandvg&feature=BFa&list=PLCBF574D
Regards
DL