The BFG worries that Sophie's parents are missing her. Sophie explains that her parents died when she was a baby and that she lives in an orphanage run by a mean woman who locks them in the cellar for punishment. Sounds about on par with being kidnapped by a giant.
The BFG feels so sorry for Sophie that he starts to cry.
Sophie tells him her more pressing concern, which is that the giants will find and eat her eventually. It's a fair point.
Sophie asks the BFG what he was doing on her street last night. The BFG doesn't want to tell her, but Sophie points out that she'll never see another human again, and she wouldn't have a chance to tell the other giants, because they would eat her before she could speak.
Turns out, the BFG was blowing happy dreams into children's rooms. He says he collects dreams.
He says dreams make a sound, which only he can hear because of his huge ears. Who would have thought they could come in handy like that?
Sophie and the BFG get on a tangent about what other things the BFG can hear that Sophie can't. They include: ladybug footsteps, ants chittering, music from the stars in the sky.
The BFG can also hear flowers when they're picked and trees when they're cut down, and he tells Sophie that they sound like they're being tortured during these events. Some things you wish you didn't know.
Back to happier sounds. The BFG tells Sophie that he usually goes to a special place for catching dreams and brings a net to catch them with.
The BFG decides he's hungry and that it's time to eat.