So far in this podcast, most of my guests have told us about their aspirations in life and their quest to achieve their dream.  My guest today, Deirdre Barrett, is different. She studies dreams. She writes books about the dreams people have in their sleep and she teaches classes at Harvard about those dreams. Deirdre has been interested in dreams from a very young age and her search is, in part, about the dreams we have while asleep and their bearing on our waking lives.