We kicked off 2018 with a Carpool conversation with the wonderful Matthieu Ricard. Nick-named the World's happiest man, we drive Matthieu from his hotel to the airport. We discuss mindfulness within a buddhist context, the concept of 'heartfulness', Descartes, and the 'convenient' illusion of the self. Matthieu gave up his scientific career to become a monk and moved to the Himalayas where he resides to this day. He translated for the Dalai Lama for over a decade, and has written many best selling books on the subject of happiness and altruism. His talk on Happiness is one of the most viewed Ted talks, and is one of the most influential figures in mindfulness and meditation today.