Big Honkin Difference

Okay how are we going to make a big honkin' thing happen as Christians? Consider the last sentence of this paragraph from a newsletter.
'Last week I attended the Willow Creek Association's REVEAL conference. Bill Hybels was the opening speaker, and apart from discussing the impact of the REVEAL research, I was surprised by what he identified as the church's biggest challenge. Hybels says the largest gap exists not between seekers and believers, but between less mature Christians and "Christ-centered" Christians. The less mature, he says, believe that "God is for me, my plans, and my agenda in this world." But the truly Christ-centered have given up their lives and dreams in complete surrender to him. "A big honkin' thing has to happen for a Christian to move from self-centered to Christ-"
How do you think God is leading you to make a difference? What was the changing point in your own life?