Talking about God and faith is talking about things we can't prove. That's why someone thinks it's unrealistic to believe in God. But do you really believe only things that are proven? I think you believe most things because people told you and you think it's true. But in many cases you can't be really sure.
Things that are out of our scope can't be discovered by humans because of our limitations. And when we try to describe things that are out of our scope we don't have the right words. But I still believe there are things out of our scope. I believe that there is more then we can sense.
The movie The Matrix is a fantastic movie and has a good script. It tells a story about our live and things out of our scope. It’s a fantasy movie but very realistic. The Bible tells a more realistic story, it's an old story because it is based on history and it's even an actual story because it describes reality.
If God exists, he exists out of our scope. How can we describe God and how can we really know that God exists? We can't! But if God exists then he is able to let us know that he exists. I believe that God creates the whole universe including the earth. He creates all life on earth, including the human. He is our designer!
God did not create robots. God give people on earth the ability to make their own choices. But the people want to be like God. That's why all people will die. But God still loves his creation. God becomes a human on earth! Jesus Christ was born! He died for everyone who believed him. This part is hard to understand. I think it combines two properties of God: He is righteous (the debt must be paid) and he is love (he paid the debt by himself). Even you don't believe it: God loves you!