Religion at its core has always been an attempt to learn the absolute truths of nature. Of course it is quickly destroyed by theology and dogma.
All the religions contain these seeds of truth and all of them fall foul to their own theology. But morality was always a key in their construction.
Aesops fables contain profound lessons about human nature. But were you to take his stories as fact then it would have serious consequences for your sanity. You perception of the world would be loosened by such misinformation and it would no longer be possible for you to separate right from wrong as you can't even separate fact from fiction.