Nothing. I was never particularly religious but went along with it from age 9 onward because my parents convinced me that it was the only way to survive armageddon. I haven't attended a religious service since I left in my early 20's. Apart from weddings and funerals!
It's strange - I have all the dub knowledge in my head but it's not in my heart. The one advantage is that I'm a whizz at pub quizzes when the Bible questions come..