Hmm …

… He Lives: Prayer is a way more difficult subject that Quantum Mechanics. (Hat tip, Dave Lull.)

I think what is said here about prayer — that it is a privilege, etc. — is quite good. But I don't  see the objection to Qaoud's notion that God may answer every  prayer, but sometimes may say "no." That happens in life all the time. Someone asks you for something and you decline to give it to them. Prayer is the lifting up of the mind and heart to God. That is good in itself. Our perspective on things may often not align with God's. So He may not be able to grant exactly what we ask for. But I have no doubt that his grace is dispensed to us anyway. And that is what we most want and need from God: His grace. Of course, I am not burdened with any Calvinistic notions of God.