This week, we were honored to bring on a guest we’ve hoped to have on for years — Susan Cain. In 2013, she released her book Quiet: the Power of Introverts in a World that Can’t Stop Talking.  But today, we brought Susan on to talk about her new book, Bittersweet: How Sorrow and Longing Make Us Whole, another masterwork that reached #1 on the New York Times bestseller list and has been praised by Brene Brown, Glennon Doyle, and Adam Grant.