“Here I was, enjoying a continuity of being.” The big sphere of my baby’s head was very much like a circle, and when he felt like he was falling, his little arms and legs jerked upwards, like their propulsion could push him back to his starting point. Because I was not a not-good-enough mother, this didn’t happen very often, but I winced every time it did, nevertheless. The difficulty of maternal gathering is that it is always going to fail. To grow—to become a person—the baby must get past his earliest, balloon-like self. He must separate himself into a head and a body, then a head, a body, and arms. The project is not solely separating the baby from his mother; it is separating the baby from himself. Building a version of self that can acknowledge its hands and feet. Its mind, within, and its skin, without.