I don’t think we need to know, but it sure would be interesting.
I think the concept of “God” may actually be related to sightings/visitations from aliens in our past. Seriously. Watch the “Ancient astronauts” series from the History channel.
Pretty mesmerizing, and while I don’t believe in everything they say, still, EVERY single culture all has the exact SAME historical connection of beings in chariots of “fire” coming to earth. Many ancient religious paintings show UFO type crafts hovering in the backgrounds, along with many other works of art, cave drawings, etc. that show eerily similar depictions of beings in space suits and crafts long before the reality of these potentials in modern science.
I think this theory is just as good as any other. Perhaps we were aided in our journey from beings from other galaxies.
Who knows, but the series was quite captivating and has some pretty thoguht provoking content. ;-)