It has been proven that praying changes the way your brain works, but it does the same thing when you meditate. The act of praying can help with lucid dreaming, but no more than meditating, and it's not by an god's hand that you become lucid.

Open mindedness alone is not a good thing. It must be paired with a healthy level of skepticism, else one risks becoming gullible. To quote Noogah, "Careful. Being too open minded will make your brains fall out." I'm not saying that there is no god. For all we know, god very well could have created the universe. I'm saying that there is no proof of him/her ever touching the Earth or altering it in any way. Because of this, all human religions are but superstitions, losing all credence. They are an immature means for early mankind to make sense of that which was, until recently, beyond understanding.