Belief in God is rational.
Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED.
I want to thank those looking at my blog for your interest in the music has given me motivation to continue to edit older pieces. But z63 is more recent. e21 is from around 2005 but needed editing