We know it was not created from pre-existing matter. Which means we know it popped into existence. We know that life and intelligence are written into the fabric of existence.All we know is what happened a few nanoseconds after the universe came to be.
We do not know what happened in the nanosecond before the universe came to be so we cannot ever know how the universe was created.
It's all educated guesses.
You need to see these as educated guesses because it challenges your beliefs.