One of the hardest concept and greatest danger for both believers and unbelievers is Satan and his dominions. His strongest and most effective weapon against mankind is doing whatever it takes to make people believe he doesn't exist. Caricatures, childish stories, illogical premise, ignorance and plain negligence have done a nice job to help perpetuate the impression that Satan, as depicted in the Bible, our mortal and relentless enemy doesn't exist. Of course, all this leads to lowering our defenses against his schemes and attacks, and we become easy prey to his wicked works.

Satan, by himself, has no power over the physical world. He is a spiritual being and as such there is nothing he can do to use any physical means to do his works. There are only two ways he can affect us or damage us: 1. A cooperative host that doesn't believe he exists and by making fun and enjoying any claimed manifestations of his existence, become host and even welcomes him in his life; 2. A weak minded believer, insecure and unsure whether he exists or not who allows Satan to introduce ideas and suggestions in the mind of the believer and so, create confusion, doubt and incredulity which makes his traps of temptations easy to set.

Demon possession is a well documented fact in the Bible. And so are the schemes and tactics he uses in order to weaken the faith and trust of the believers. The battle is not in the world, the battle is between our ears. That's right, in our minds.

Satan couldn't care less about the unbelievers. They are his instruments and are harmless to him. His target is the believer.