Some people don’t think much about their faith.

For them, it’s primarily a matter of belonging (I enjoy being part of a church, synagogue, mosque, temple, or dharma group) or of survival (I don’t want to go to hell; I want to maintain God’s blessings of health and wealth for my continued well-being in this life.) They haven’t had an intellectual question or doubt about their faith for years, or maybe ever, because for them, the conceptual side of faith simply isn’t that important, especially in comparison to its social and survival dimensions. 

From “Faith After Doubt: Why Your Beliefs Stopped Working and What To Do About It” by Brian McLaren