And the reason it makes for good literature is precisely that it strikes a chord deep within the human heart ... or deep within many hearts, at any rate.
Even Adam had to give up a rib! ;-)
Someone whose music I really enjoy said something to the effect that there is only one tune in the music of Ireland and Scotland...but luckily it's a really, really good tune. To an extent, there are a limited number of stories...but they are ones that really touch us deeply! It's very interesting, I think.