Even children six and seven years old travailed in prayer for countries the names of which they couldn' t even spell. In an old town in Ireland they'll show you with reverence a place where four young men met night after night after night praying for revival. In Wales, there's a place in the hills where three or four young men only 18 or 19 years old met and prayed night after night. As far as humanly possible they prayed a revival into birth. If you're thinking of revival at your church without any inconvenience, forget it.
Revival costs a lot.
I can give you one simple reason why we don't have revival in America. Because we're content to live without it. We're not seeking God - we're seeking miracles, we're seeking big crusades, we're seeking blessings. In the 30th chapter of Genesis, Rachael goes to Jacob and throws herself down in despair. If the coming of the Spirit didn't revolutionize your prayer life, you'd better check on it.