Who we are is qualia - whether generated by brain (physical) or God (unseen). God creating unseen qualia is easy to see, how the brain (physical) can generate qualia is impossible in my viewpoint. I'm the opposite, I believe physical existence by definition is impossible. All we imagine is created through qualia, even when we analyze five senses, it's qualia. The brain is more like web page while the code behind it is more complex and little to do with the web page we see. The web page is for us to interact with and so the body and brain is for us to interact in this world, but in reality, physical existence is impossible.
So you are saying you don't believe in the physical?
That's fine. Just not very practical. You need to eat, that is physical. You could attempt to prove that the physical is not real by refusing to eat this food that is unreal. There are a number of things you can do to test how physical things affect you.
Supernatural elements whether I believe in them or not have no adverse effects on me. To not believe in the truck that is about to run you over is going to have adverse effect on to. To not believe is a supernatural deity doesn't affect the physicality of your life.
Why should I believe in something that is not going to physically affect me?
However I understand it does have an effect on your emotional state. So does watching a movie, reading a book, etc...
It is just not necessary to affect you emotional state. IOW, you can live life without it without adverse effects.
Something you can't do with physical reality.