"God knows everything - everything we say in prayer, God already knows. The point of praying is definitely not to reveal things to an all-knowing God. God acts only when God knows it is good to act, the wishes of prayer can only ever be against God's will, as I have elaborated on above. So, when prayer works, how does it work? If prayer works, then it is either coincidence (you've prayed for something that was going to happen anyway) or, you knew what was best better than God did, and God intervened!. The latter is impossible. Magic, or prayers, when they are effective, must be against God's will. If you ask a Christian or a Muslim, what will they say is the magical force that acts against God's will? Satan's will. If a supernatural affect such as prayer goes against God's will, then it is Satanic. As such, prayer is either useless, or Satanic. What business, then, have theists got in praying? This is a warning to all god believers that they must be very careful of their own motives when they get together and pray for things!"
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