Krista Tippett, creator of On Being and convener of the American conversation on spirituality, sits down with Amy and Rebecca to dig into the Big Questions: How does religion connect the soul to the body? What does it mean to live a spiritual life? How is humor a signal of spiritual depth? Where do we find joy? How do our roots inform our future growth? Also, what does it mean for your identity when your curly hair turns straight? (Seriously.) For more on Krista and her spiritual practice, check out mashupamericans.com.