It's because human nature is to try to explain the unexplainable and to be narcissistic, that religions such as Judaism, Islam, or Christianity came into practice.

Those that require the utmost faith with no noticeable effects save the normal meditative status which comes when praying. Note that normal meditation puts your brain in the same state as fervent prayer does. There needs be no deity.

I am a theist, one who believes that dogmatism is a wrong practice. I merely do not believe these shenanigans the middle east threw at us to pray for. I credit the eastern religions as a more valid form of religious practice. These religions which do not need blind faith to achieve no goal, save for the faith required for the inexpressible bliss one feels when they learn to let it all go, to accept what happens, and to count yourself as one of the many whole.