How Does Prayer Fit In?

I'm intrigued by your comments to Charles' post--Abby (and Dave, to some degree) raise whether churches have a role in this endeavor at all, which seems worth some consideration.

But for now I'm wondering how you all think about prayer in this endeavor.  We've been throwing out that maybe our objective could be summed up as something like, "to help facilitate a stage 4 revival in the secular west."  Given that most of what we've seemed to be doing recently is define terms, this begs that same question.  What do we mean by "revival," most notably.  But I'm bogging down with defining things just now, so we'll leave that unanswered. 

So, however you think about "revival," what role do you feel prayer will pray in it?  Are you pursuing that kind of prayer in any fashion?

A few churches represented here are fasting and praying as whole churches right now for something at least along these lines.  Their thinking has been that cleverness and savvy cultural interpretation and good leadership and preaching skills can indeed take us somewhere down the path to this dream.  But limits will invariably set in.  Our smarts and skills and normal devotional practices can only take us so far.  Perhaps prayer and fasting will bump this up a level.

But what do you think?  Has prayer for your community (or the secular west) been part of your repertoire?  Has God spoken to you about this along the way?  What's God said to you? 

How does prayer fit in?