[quote=@pugbutter]
<Snipped quote>

So just to be clear: the story does not have to be the myth in itself. It can be any prose story at all as long as the myth affects the narrative in a significant way?
[/quote]

Yep, a myth just needs to be an important element, not the entirety of the story. An entry that is the telling of a myth in and of itself would definitely count though.