Shopping at Whole Foods is a literary experience, too. That’s not to take anything away from the food, which is generally of high quality, much of it “certified organic” or “humanely raised” or “free range.” But right there, that’s the point: It’s the evocative prose as much as anything else that makes this food really special, elevating an egg or chicken breast or bag of arugula from the realm of ordinary protein and carbohydrates into a much headier experience, one with complex aesthetic, emotional, and even political dimensions.