"Each of Nora's children had arrived on this earth as him or herself," highlights the individuality of her children and emphasizes that they each came into the world unique. As Nora observes and understands her children more, she recognizes and appreciates their distinct personalities.
The quote underscores the contrasts between her children and herself, illustrating how each person is inherently different. Nora's growing comprehension of who they are deepens her connection and admiration for their innate differences, shaping her perspective on family and identity.