Insights from some of her heroes, like John Calvin and the Puritans, would help round out the picture. Marilynne Robinson is in awe of humanity. “Properly speaking, we are the stuff of myth,” she enthuses in her fourth essay collection, What Are We Doing Here? Open the book to almost any page, and your eye will land on sentences like that. Human beings possess a “splendid dignity,” she says at one point. Our preserving literacy and practicing scholarship are “a spectacular demonstration of the capacities of the human mind,” she says at another. The kind of creativity, intelligence, and eloquence…