UCLA Mindfulness Awareness Research Center: http://marc.ucla.edu/body.cfm?id=22

Jon Kabat-Zinn doing a session at Google: https://www.youtube.com/watch?v=3nwwKbM_vJc

And, of course, Headspace: https://www.headspace.com/

Just sit back, relax, and enjoy one of those. And then all of them.