The Quran is a dispiriting book. It's chock-full of passages in which Mohammed scoffs at those who didn't pay heed to Allah's past warnings, like the destruction of Sodom. When well-meaning people suggest to him that those stories might just be, well, stories - legends, myths - they are roundly condemned and promised an eternity of hell-fire. The amount of superstitious claptrap is worrying enough; but the sheer number of passages condemning all unbelievers to eternal punishments - and the cruel self-satisfaction with which those curses are pronounced - is chilling.
(I've read the book twice in two different translations.) Stick to the Gospels or the Gita. Or Sufi poetry - a true poet isn't a religious fanatic.