Life's management

I believe in God because Life is too much complex and no one can manage it. If God doesn't exist we would have to have paranormal powers. But If we suppose paranormal power existence then we would believe in miracle. Which is as believe in God.

Why?

Why am I on this world?
Why are milions of persons here?
I know.
But the answer is in other realm than reality.
The answer is trascendent and cannot be revealed.
The answer is like fog but it'll open us eyes.
It's both very much complex and very much simple.
And we know it since us birth.