I listened to the following podcast yesterday. There is a LOT of relevance to many of our discussions here, I think – even though the focus is the workplace.
It is roughly 30 minutes, and the entire think is worth a careful, thoughful listen – and relaxed, quiet comtemplation time afterward (even if not immediately afterward).
http://www.npr.org/2012/03/21/148607182/fostering-creativity-and-imagination-in-the-workplace