Bless you! I'm glad you have such confidence in your rationality. I don't have any aces up my sleeve, and I haven't laid down "faith" as a trump card. I just have a lot of cheerful questions, the biggest, but not the only one, being "why?"
What's the point of all this hoax?
Is it the chicken and the egg time, are we just yolks?
Or perhaps we're just one of God's little jokes...
Is life just a game where we make up the rules,
While we're searching for something to say,
Or are we just simply spiralling coils,
Of self-replicating DNA.
(thanks Python, couldn't have put it better myself).
Reason takes us so far: perhaps to Dawkin's point that the question of meaning has no meaning. It's perfectly possible that the search for meaning has no answers, that it is itself a delusion, and if that's where you place your bet, good luck to you: I hope your flush doesn't get busted. That the conclusion doesn't work for me, that I prefer to go on exploring (and including fields such as aesthetics, the sense of right and wrong, transcendence and even spirituality), does not mean I am laying down my "irrational certainties" against your rationality or claiming superiority for faith over reason. My position is not "better" than yours, but I do not think it deserves just to be dismissed as credulous, unthinking, irrational, or idiotic. Your call.