Have you ever wondered why you like sad music? Do you find comfort or inspiration in rainy days? In this profound, poetic talk, author Susan Cain invites you to embrace the feeling of longing -- or the place where joy and sorrow meet -- as a gateway to creativity, connection and love. Accompanied by the splendid sounds of violinist Min Kym, Cain meditates on how heartache unexpectedly brings us closer to the sublime beauty of life. Afterwards, hear a sneak peak from a conversation with Cain on Amanda Palmer's podcast The Art of Asking Everything, where they discuss her new book "Bittersweet." This episode is part of the TED Talks Daily summer book club, a series featuring talks and interviews to inspire your next great read.