“How is your heart?” I recently asked a friend going through a trying period of overwork and romantic tumult, circling the event horizon of burnout while trying to bring a colossal labor of love to life. His answer, beautiful and heartbreaking, came swiftly, unreservedly, the way words leave children’s lips simple, sincere, and poetic, before adulthood has learned to complicate them out of the poetry and the sincerity with considerations of reason and self-consciousness: “My heart is too busy to…