Jack Kornfield (@JackKornfield) trained as a Buddhist monk in the monasteries of Thailand, India, and Burma, shortly thereafter becoming one of the key teachers to introduce Buddhist mindfulness practice to the West. He has taught meditation internationally since 1974.Jack has had a profound and direct impact on my life, and I'm thrilled to finally have him on the podcast to share our history, his incredible stories, and practical tactics and techniques that you can use.Jack co-founded the Insight Meditation Society in Barre, Massachusetts, with fellow meditation teachers Sharon Salzberg and Joseph Goldstein and the Spirit Rock Center in Woodacre, California. He holds a Ph.D. in clinical psychology and is a father, husband, and activist.Jack's books have been translated into 20 languages and sold more than a million copies, including The Wise Heart, A Lamp in the Darkness, A Path with Heart, After the Ecstasy, the Laundry (one of my favorite book titles of all time), and his most recent, No Time Like the Present: Finding Freedom, Love, and Joy Right Where You Are.Enjoy!This podcast is brought to you by Four Sigmatic. While I often praise this company's lion's mane mushroom coffee for a minimal caffeine wakeup call that lasts, I asked the founders if they could help me -- someone who's struggled with insomnia for decades -- improve my sleep. Their answer: Reishi Mushroom Elixir. They made a special batch for me and my listeners that comes without sweetener; you can try it at bedtime with a little honey or nut milk, or you can just add hot water to your single-serving packet and embrace its bitterness like I do.Try it right now by going to foursigmatic.com/ferriss and using the code Ferriss to get 20 percent off this rare, limited run of Reishi Mushroom Elixir. If you are in the experimental mindset, I do not think you'll be disappointed.This podcast is also brought to you by FreshBooks. FreshBooks is the #1 cloud bookkeeping software, which is used by a ton of the start-ups I advise and many of the contractors I work with. It is the easiest way to send invoices, get paid, track your time, and track your clients.FreshBooks tells you when your clients have viewed your invoices, helps you customize your invoices, track your hours, automatically organize your receipts, have late payment reminders sent automatically and much more.Right now you can get a free month of complete and unrestricted use. You do not need a credit card for the trial. To claim your free month and see how the brand new Freshbooks can change your business, go to FreshBooks.com/Tim and enter "Tim Ferriss" in the "how did you hear about us" section.