I suppose it just seems that this God is an eternal hard drive in the sky - the Universe itself. It is not rational because it can not think, it can not think because it is all knowing.
remember that god is all powerful, so he can also forget all his knowing, so that he can think again.
If it's the universe then why the need for the word God?
because there are different definitions for god. for example, some say that god is not omnipresent. if god is life (like jesus/god says), he can be both omnipresent and not. he can be both impersonal and personal etc.
As such, we're just as entitled to worship satan,
worship this god: http://en.wikipedia.org/wiki/Sanat_Kumara
he's pretty cool. he's the ancientofdays from the bible. an advanced spiritual being who came to earth from venus 18 million years ago.