The 4-year-old was playing hide-and-seek with me, and I saw her hiding behind the door, covering her face with a corner of her clothes hanging behind the door. The closer I got, the more she hid her face deep into the corner of her coat, as if I couldn't find her if she couldn't see me. As I approached, poking her fleshy little feet, she let out a silver bell-like laugh, so crisp, so pure.