You're still that kid in the dark

"But why do we keep all that crap inside?" Mack asked.

"Because we believe its safer there. And, sometimes, when you're a kid trying to survive, it really is safer there. Then you grow up on the outside, but on the inside you're still that kid in the dark cave surrounded by monsters, and out of habit you keep adding to that collection. We all collect things we value, you know?" (p. 175)