(deep in discussion about life, the universe, and everything)
Four-year-old daughter:  So the sun shines somewhere else when it goes away from here?
Mama: Yes.  Our planet moves around the sun so everyone gets a chance to see it.
Four-year-old daughter:  That's so exciting.
Mama:  What is?
Four-year-old daughter: That the sun eventually shines, even in the really dark places.