Actually, I still fear sometimes from hell and djinns and all the other myths that was injected in ou minds. But not always. Only when night falls and the mind stats playing its illusion games. there was that movie about the afterlife of a person who don't pray and listen to music. I swear God it was the spoookiest thing I've seen in my life.
The thing is there were no special effects nor that it used high tech and other hollywood stuff. the death angel was simply cloaked with something similar to a burqa'a and he was a little bit tall. Nothing as scary as The Grudge or The ring u might say. Well my heart is still throbbing and pounding furiously whenever i project the image in my mind. And u may ask why? simply, it is bcuz they tell u everything ur watching is true. they r not the product of the human mind but the truth of what shall happen to you after u die if u didn't pray and be good.
I spent the next 6 months or so in somekind of a children insomnia. I couldnt sleep unless in my mom's bed and still the hanger clothes in my room turns into the boogy man after midnight. So it is not only ur friend. Alot of people feel that too.
I still fear hell and djinns. although I'm not intimidated from them as much as before. I still think what if islam is right and god is decieving us and make it sound savage and wrong, and then he'll burm me in hell forevermore
But if u want an answer, then take this from someone who've gone through this stuff: there is no truth but science. If you want to erode all these myths from his head, than science is the way. Make him read, like what donetelo said, about evolution. My doubts of islam officially started when I began reading about evolution
. start with sci magazines cuz they r easy to fathom (aka discover, BBC Focus and National Geographic).
And sorry if I offended ur friend dude. I was just playing around.