Personally my opinion is that man in his natural state has an inbuilt sense of God and the spiritual world as so many primitive tribes of people have automatically done this.
I believe in God as a creator that we benefit from interaction with.
I believe there is some sort of reality outside of the physical one we are constrained in and there is life in it referred to it as spirits etc that can interact with us.
Our minds are really clever and there we have senses that interact with others minds on other levels, ie telepathy, remote viewing, reading peoples minds or that gut feeling you get about someone, picking up the phone to call someone who calls you at exactly the same time. Ever stood next to someone and had a really creepy feeling without talking to them? your in each others electromagnetic fields that extend beyond your body and you can sense something.
I think the paragraph above explains some things that would be attributed to "supernatural" for lack of a better explanation from many of the uneducated minds of our ancestors.
Its hard to talk about God without referring to Jesus teachings as a life changing experience. I think his original message in the Gospels has a lot of positive psychological benefits for your life and desire for interaction with God
