An old man says to his grandson: 'There's a fight going on inside me."

[cayugafalls]

16. Interesting. The author does say that "This story seems to have begun in 1978..."

And then presents a story by Graham about an Eskimo and his dogs.

Personally, I believe that parables are timeless throughout culture. Even a bar drunk can stumble upon a "bit of wisdom" when he tells a drunken story from some long distant memory lost in the fog of his stupor.

The author of that article you cited, cites a tumblr researcher that no longer exists, so the trail goes cold rather quickly.

The version I remember, is not quite the same as either story, but the parable remains the same.

If you harbor evil in your heart and dwell upon the darkness, it will overtake you.