Both restful and thought-provoking. If you're mildly interested, I recommend watching the video.
I think this is the link -- http://www.youtube.com/watch?v=3nwwKbM_vJc -- but I'm in China, which blocks YouTube, so please correct if it's wrong.
Edit: his Wikipedia page -- http://en.wikipedia.org/wiki/Jon_Kabat-Zinn -- links to a bunch of talks he's given -- http://www.google.co.in/search?q=Jon+Kabat-Zinn&hl=en...