On page 62 paragraph 2 the author states, "Everything's a wheel... always growing and changing."If you are not on the wheel then you are stuck you can't grow.That would be bad ,because who wants to stay the same their whole life?
On pg. 9 paragraph four Natalie Babbitt states,"I was having that dream again,the good one where were all in heaven and never heard of tree gap." If he was having a "Good" dream about himself being dead then he must have been tired/bored of living forever.