In Chapter 31 of To Kill a Mockingbird, what does the quote "Boo's children needed him" represent in context with the rest of the passage?
Boo has probably been watching Jem and Scout play outside from inside his house since long before Dill made his appearance and the children began performing their Radley game. Boo must have been just as interested in the children as they were mesmerized by the possibility of getting a glimpse of him. Boo saw Jem run up and touch the house and saw them trying to deliver the thank you note for all of the gifts Boo had left them. As Scout looks out from the Radley porch in the final chapter, she stands in Boo's shoes and sees the neighborhood from his perspective, reliving events of the past two years as if from Boo's eyes. Boo saw all of the children's ups and downs, happy moments and sad, and it is evident that Boo was also watching them after dark as well. When his children--for surely Boo must have considered Jem and Scout his special friends--needed him most, Boo was close at hand to protect them from the murderous hands of Bob Ewell. It was only by standing on Boo's porch in Boo's shoes and seeing things from Boo's perspective did Scout finally recognize that
... you never really know a man until you stand in his shoes and walk around in them. (Chapter 31)