It's actually not JUST about nurseries at the hospital, if you keep reading there's a huge section after the baby is taken home from the hospital when the mother nurses the baby, changes it's diaper, then puts the baby in his/her crib, closes to door and leaves.
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"Home is essentially indistinguishable from the maternity ward except for the chafing. The infant’s waking hours are passed in yearning, wanting, and interminable waiting for rightness to replace the silent void. For a few minutes a day, his longing is suspended and his terrible skin-crawling need to be touched, to be held and moved about, is relieved. His mother is one who, after much thought, has decided to allow him access to her breast. She loves him with a tenderness she has never known before. At first, it is hard for her to put him down after his feeding, especially because he cries so desperately when she does. But she is convinced that she must, for her mother has told her (and she must know) that if she gives in to him now he will be spoiled and cause trouble later. She wants to do everything right; she feels for a moment that the little life she holds in her arms is more important than anything else on earth.
She sighs, and puts him gently in his crib, which is decorated with yellow ducklings and matches his whole room. She has worked hard to furnish it with fluffy curtains, a rug in the shape of a giant panda, white dresser, bathinette and changing table equipped with powder, oil, soap, shampoo, and a hairbrush, all made and packed in colors especially for babies. There are pictures on the wall of baby animals dressed as people. The chest of drawers is full of little undershirts, slumbersuits, bootees, caps, mittens, and diapers. There is a toy wooly lamb stood at a beguiling angle on top, and a vase of flowers – which have been cut off from their roots, for his mother also “loves” flowers.
She straightens baby’s undershirt and covers him with an embroidered sheet and a blanket bearing his initials. She notes them with satisfaction. Nothing has been spared in perfecting the baby’s room, though she and her young husband cannot yet afford all the furniture they have planned for the rest of the house. She bends to kiss the infant’s silky cheek and moves toward the door as the first agonized shriek shakes his body.
Softly, she closes the door. She has declared war upon him. Her will must prevail over his. Through the door she hears what sounds like someone being tortured. Her continuum (instinct) recognizes it as such. Nature does not make clear signals that someone is being tortured unless it is the case. IT IS PRECISELY AS SERIOUS AS IT SOUNDS.
She hesitates, her heart pulled toward him, but resists and goes on her way. He has just been changed and fed. She is sure he does not REALLY need anything, therefore, and she lets him weep until he is exhausted…”