Your sentence here is ambiguous, and your later statements seem to suggest the impossibility of ever knowing or understanding the creation of the universe. That's not what I meant. With the current state of human knowledge, we're unable to make meaningful statements about the creation of the universe. I don't claim that it is impossible to ever know, however. Humans are resourceful and any number of weird things may be learned or discovered in the future which may make the creation of the universe explicable.
If you want a fiction, sure. If you want to actually know how it began, you'd be better off taking up astrophysics or some suitable field in which you might actually contribute to the sum of human knowledge about the creation of the universe.
Because people like you are uncomfortable with the idea of a universe without purpose and meaning. People like me are fine with the idea that the universe is what it appears to be, and if that's without explicit purpose and meaning then that's quite OK. I'm quite capable of creating my own motivation and satisfaction without needing to resort to sky daddies and cosmic intelligences, thank you very much. I live my life the way I do because I think it best in my own considered opinion, not because I believe that I'm conforming to some divinely inspired natural law of purpose.
You continue to look for answers in a greater power, even to the extent that you suggest that it's better to lie to yourself about it than live in a universe without an innate purpose. I find my answers in myself and my fellow humans.