There is no god. If there were, you could have straightforward conversations with him whenever you wanted (and thus you could ask him this question, instead of asking it here). And prayer has no confirmed effects other than natural psychological and biochemical effects (such as placebo and anxiety relief), which is equally accomplished by entirely godless meditation.
Is prayer just a way of centering oneself neurochemically (all maintained within the brain alone) or does prayer really connect one with "God"? How does one know if one is really communicating with "God"?
The Atheist Perspective
What's an easy way to demonstrate that polytheism is false?
What are the beliefs of Hari Krishnas and do you agree with them?
Isn't it the case that, rather than presupposing god as it claims to, the presuppositional view actually presupposes logic and reason?
Is Allah always just (4:40) or does He sometimes ignore the penalty for sin, like when He is merciful (4:64)? Is this contradictory and why or why not?
How can man be blamed for his inbred sin when he did not ask to be born or even exist?
Atheist Proving History: Bayes's Theorem and the Quest for the Historical Jesus Richard Carrier Atheist Hitler Homer Bible Christ: The Historical Papers of Richard Carrier 1995-2013 Richard Carrier Atheist Why I Am Not a Christian: Four Conclusive Reasons to Reject the Faith Richard Carrier Atheist Atheism: A Philosophical Justification Michael Martin Atheist Humanism: A Very Short Introduction Stephen Law Atheist God Is Not Great: How Religion Poisons Everything Christopher Hitchens Atheist Sense and Goodness Without God: A Defense of Metaphysical Naturalism Richard Carrier Atheist Not the Impossible Faith Richard Carrier