Howdy, thanks for replying, I really enjoy reading your work too!
And yeah, you nailed it right on the head. Cain is basically the archetypal human, (which is why we all descend from him) and Abel is the elusive idea to which all people aspire (elusive because he was killed, and fathered no children). I really like this story because it's so darn short and yet it packs in so much wisdom and truth into like ten lines. You can really relate to a story like that, whether it "historically" happened is really besides the point.

Good day!