It wasn't meant literally. The idea is simple. People that don't believe in God end up becoming their own authority and try to lead themselves through their own life. People that believe in God try to understand God's will so they can follow His lead. It's kind of like step 1 of any 12 step program, admitting you are powerless. Believers admit they are powerless to control their life.
I am not extremely religious and question the literal existence of God. But this orientation has helped me. It started when XW left me. I finally got to the point where I gave up trying to be in control because it hadn't worked. Instead I tried hard to understand what God would have me do. Somehow I gained 50% custody of my children and have found myself being a strong parent and better person. It's shifted my focus from 'It's about me getting what I want and I know how to do it' to 'It's about me doing my part to serve those I have been blessed with responsibility for such as my children and company and customers, I don't know how to do that but will do my best to be open to guidance'.
This is how I interpret those words and this is how it's helped me. It's not all encompassing as there are plenty of wise atheists and selfish Christians. In general, though, I do think that there is a trend towards overconfidence in our society, and pride comes before a fall.
Me:38 XW:38 T:11 years M:8 years Kids: S14, D11, D7 BD/Move out day: 6/17/14, D final Dec 15