Preoccupied?

This was originally posted on this blog late last year. It's not that I cannot post anything more up-to-date or original. I just keep going back to square one.

"We are called to an everlasting preoccupation with God."
~ A.W. Tozer

An everlasting preoccupation with God! I love the thought of that. But I seem to be preoccupied much of the time with everything else in the world. Call it focus, or vision, or priority... Whatever. I've heard all of the messages and preached most of them myself. Yet I have no answers, nor can I make any excuses.
Maybe this is why monks for many centuries have locked themselves away in monasteries. So that their preoccupation with God will grow to consume their lives. But how do I live this out in the course of the life that He has given me to live?