No one returns from Christianity to the same state he was before Christianity but into a worse state: the difference between a pagan and an apostate is the difference between an unmarried woman and an adulteress. For faith perfects nature but faith lost corrupts nature. Therefore many men of our time have lost not only the supernatural light but also the natural light which pagans possessed.
C. S. LewisBut if you are a poor creature--poisoned by a wretched up-bringing in some house full of vulgar jealousies and senseless quarrels--saddled, by no choice of your own, with some loathsome sexual perversion--nagged day in and day out by an inferiority complex that makes you snap at your best friends--do not despair. He knows all about it. You are one of the poor whom He blessed. He knows what a wretched machine you are trying to drive. Keep on. Do what you can. One day He will fling it on the scrap-heap and give you a new one. And then you may astonish us all - not least yourself.
C. S. Lewis