1. Luke had a knack for hitting things right where it matters most, a product of his ability to focus. Forget the long winded rituals and attack the target dead on. That’s Luke above everything. In spite of the weight of the galaxy, he doesn’t loose focus. Him thinking about killing his nephew was almost his failure in keeping target. He knows something else is more important to focus on which this won’t solve. He has a focus no one else in the story does. It’s again seen in his last moments of force projecting. No other user sustains that amount to focus in the movies, look at his face and for how long he did it. I’m tired of this innocent always positive Luke trope. That’s not his main quality. He was a crack shot and that’s his method of the force. Him reconciling with Vader is mainly about a one on one, how to topple the Empire with a single interaction, he just has to get close enough. Not goodness, which of course he does have. Only Sidius has comparable focus. Luke’s time in seclusion is rest and preparation for past and future unsustainable effort.