There's a "joke" amongst psychiatrists to the effect that talking to God is called prayer, but hearing God means you're "nuts".
Really? If so, then tens of millions of people are "nuts", because they are committed to a belief system based on the premise that God can and does speak to people, and that he has done so throughout history. And by the way, a lot of Jews share that belief even if they reject the idea that Jesus was the messiah. Ditto for Muslims, although there are obvious differences of opinion about certain matters, when one compares their beliefs with the beliefs of Christians.
Numerous people have died martyrs deaths rather than betray their commitment to that basic proposition.
Hmmm, let's see. The aforementioned beliefs have stood the test of time for more than 2000 years. Psychiatry on the other hand is a fairly recent invention. That doesn't mean it's automatically wrong, of course, but it does strongly suggest that the aforementioned "joke" says less about God and divine revelation than it says about psychiatrists and their deep-seated anti-Christian biases. (Some Christian psychiatrists claim that faith and psychiatry are not incompatible, but when you consider psychiatrists' idea of "humor", you have to wonder.)
Sure, some people seem to be delusional in their beliefs that God has spoken to them personally, but then again, it seems arrogant to assert that one knows incontestably that they are wrong in those beliefs. Just because something seems improbable, that doesn't mean it's wrong. Miracles seem improbable to some people too.
One has to wonder what the point of talking to God is if one is not prepared for the possibility that he might occasionally see fit to reply. If one doesn't really believe that anyone is listening when one prays, then why not just be honest and admit that one isn't really a believer at all.
I find it easier to respect atheists who openly admit that they have chosen the path of unbelief than to respect people who go through the motions associated with Christianity but who, if you closely examine the way they live their lives, turn out to be faux believers in disguise.
I'm inclined to suggest that such people should defecate or get off the commode.