Video from Vimenez
Rob Bell of Love Win's fame did a series of videos under the Nooma title. They were actually very good. Here is one called Open, which looks at prayer and why we are so confused by it.
To quote from the video..." Is prayer about changing you or about changing what's happening? How could prayer change your perspective right now? May your whole life be a prayer. And may you be honest with God as you become more and more open to your role in the ongoing creation of the world."