Alissa Wilkinson posted this on her blog recently, and I thought it was worth sharing. It's a quote from Wendell Berry. I'm sorry I don't know the original source of the quote, but here it is:
"It may be that when we no longer know what to do, we have come to our real work, and that when we no longer know which way to go, we have begun our real journey. The mind that is not baffled is not employed. The impeded stream is the one that sings."
(Note: the picture above is of Wendell Berry, not Alissa Wilkinson)