This edit is a really interesting Idea, when you consider just how alike anakin and Luke skywalker are.
Earlier on Luke followed the same path as anakin but Ultimately did not fall to the dark side, whereas Anakin's path took a divergent path towards evil.
Vader is'nt only Luke's father, but in the truest Jungian tradition he is luke's shadow self.
This is what i got from the luke cuts vader's head off in the cave sequence on dagobah, and see's his own face.
The real conflict of star wars is an internal one, the monster within, or one's own darker nature.
Fairly similar to the evil Ruling Rings influence on frodo in lord of the rings.