ADNAN OKTAR:A person who understands the Might of Allah would instantly fear Allah anyway. He would feel fear with a profound respect and awe. So it is very important to make someone understand the Might of Allah.  One who does not understand the Might of Allah, would not feel fear even if you talk about Hell or tell them about hadiths. But once he understands the Might of Allah, he would have to be insane not to fear. And what a fear that would be.. But this fear is not like that of a person feeling afraid of a gun. Or of a person who fears when he sees something, this is not fear in that sense..  This one is a joyous, delightful fear. I mean it is not exactly possible to describe this fear.  Those who experience this would know. Fear of Allah would give joy to a person, it gives wisdom, it gives you horizon, it gives beauty. The other one is a fear of polytheism. For instance the man feels afraid and all his muscles contract, he grows pale, he would be in a lather.. right? This one is not such a fear.