Reply #5: It means being a Christian is no longer good enough -

[kysrsoze]

you have to be the BEST Christian, give your entire brain to 'God' and adhere to the most strict (and often incorrect) interpretation of the Bible. It seems like a psychological reaction more than anything. I've seen a few distant relatives go through this and they turn into idiots who can't think on their own and shut out their families/friends.

I believe two words sum it up: Extreme Denial