The devout of this world perform their rituals without guarantee that anything good will ever come of it. Of course there are plenty of scriptures and plenty of priests who make plenty of promises as to what your good works will yield (or threats as to the punishments awaiting you if you lapse), but to even believe all this is an act of faith, because nobody amongst us is shown the endgame. Devotion is diligence without assurance. Faith is a way of saying, 'Yes, I pre-accept the terms of the universe and I embrace in advance what I am presently incapable of understanding.' There's a reason we refer to 'leaps of faith' because the decision to consent to any notion of divinity is a mighty jump from the rational over to the unknowable, and I don't care how diligently scholars of every religion will try to sit you down with their stacks of books and prove to you through scripture that their faith is indeed rational; it isn't. If faith were rational, it wouldn't be by definition faith. Faith is belief in what you cannot see or prove or touch. Faith is walking face-first and full-speed into the dark. If we truly know all the answers in advance to the meaning of life and the nature of God and the destiny of our souls, our belief would not be a leap of faith and it would not be a courageous act of humanity; it would just be . . . a prudent insurance policy.