The point is this: If God does not exist, then life is objectively meaningless; but man cannot live consistently and happily knowing that life is meaningless; so in order to be happy he pretends life has meaning. But this is, of course, entirely inconsistent—for without God, man and the universe are without any real significance.
On Guard: Defending Your Faith with Reason and Precision (ed. David C Cook, 2010) - ISBN: 9781434701886