What Is The Point Of Prayer?

[Godscreated]

Why do you pray? (This is mainly for the theists, obviously.)

It seems to me that prayer, broadly speaking, falls into two general catagories: intercessory prayer (where you ask God to effect a change for you or for someone else) and supplicatory prayer (where you tell God how wonderful he is, or how thankful you are, or some such).

Why bother? If everything which happens is according to God's plan (or God's will, or Divine Providence, or whatever the current buzzword is), then an intercessory prayer cannot possible affect the outcome - what is going to happen has been decided already by God. Furthermore (apos to Ambrose Bierce), isn't it rather arrogant of you to ask God to alter his plans on your behalf, when you've already admitted that you're unworthy to have him do so?

And, since God is omniscient, he already knows that's he terrific and how thankful you are - why do you need to tell him? Seems kind of like if every passenger were to walk up to the bus conductor every two seconds and tell him, 'This is the Number 4 bus.'

That in mind, what is the point of prayer?

Boru

Now that the resident know-it-alls have given their wise answers, maybe the Christians here can get a word in, being that you did ask us. It wasn't that obvious to our know-it alls, I'm pretty sure they believe their experts on this subject, enough of that I'll try and give you an answer.
I pray to grow in a relationship with God, just as you talk to your friends to gain a stronger relationship. I ask questions of Him about the Bible and many subjects to gain wisdom about things I do not understand growing in a relationship with a teacher. I ask deeper spiritual questions to grow closer to God. I ask that He would help me in problems I run into in life. growing with a mentor. There are countless reasons to pray, to show thankfulness for His provisions. Think of it this way, your friend gives you a nice gift you open it up and then walk away with no emotions shown or words said, think the friend might feel you are not appreciative. Your friend knew you would be pleased with the gift, it's your friend and friends know what will make friends pleased.
God's ultimate will can not be changed, but the lives within that will can have changes to them as long as it does not interfere with God's ultimate will. Healing, financial help, safety, relationships and other things can and are changed as long as it doesn't interfere with His ultimate will. God has not planed out every second of your life nor mine, He leaves us with many choices, he does have plans for our lives and some choose to be consumed in that plan, but most Christians do not and we have that choice. To show you God has not set your life or mine to a time table that can't be changed, God says children obey your parents and your days may be prolonged, I'd have to look it up but i'm pretty sure there's verses that speak of fools shortening their lives. I pray to praise God and show my respect, what I wonder is why you would think praying is a waste of time, just because God knows everything that will happen in our lives doesn't mean He doesn't want to communicate with us or help us.