When a four-year-old stares at the marshmallows she wants, she’s likely to focus on their hot tempting features and ring the bell; when she sees a picture of them, it’s more likely to serve as a cool reminder of what she’ll get if she waits. As Lydia said, you can’t eat a picture. And as Freud might have thought, you can’t consume a hallucinatory representation of an object of desire. In one condition of one
