Here is a discussion at Alan Hirsch blog about Jesus being disequilibrium to our lives. The jargon that he uses (he is a really smart guy) about "routinization of charisma" is basically sociology speak for us soon making the spontaneous "routine" - it happens in every organization. How do we keep it from happening? Read his entry. I have a feeling in the next few days he might answer that question.
+ Oh Lord Jesus - mess up our lives some more and keep us from being apathetic.