Are you elevated by sad songs? Have you ever been brought to tears by a TV commercial? Do you relish rainy days? If you answered yes to any of those questions, then you know the power of the bittersweet. Yet chances are there have been times when you’ve struggled to square your melancholic disposition with our culture of counterfeit cheer. Well, you won’t feel that way after you’ve heard Susan Cain discuss her new book, “Bittersweet: How Sorrow and Longing Make Us Whole.” She argues that longing, sorrow, and grief are the wellsprings of connection, creativity, and hope. Download the Next Big Idea app today at www.nextbigideaclub.com/app