Does anyone notice how Ben’s scar is exactly at the same spot as where Han touches his face?
This means killing his father has truly left a scar at Ben’s heart, hence the metaphor. He also doesn’t let the scar get treated at first meaning he felt his crime very intensely. Later, he does let his scar get treated by the droids, but even after that his scar doesn’t completely disappear, it just fades. Ben can never get over killing his father, only he thinks about it less as time passes. Yet, what he did never really leaves him.
I trust myself. I trust
my instincts. I know what I’m gonna do, what I can do, what I can’t do.
I’ve been through a lot, and I could go through more, but I hope I
don’t have to. But if I did, I’d be able to do it. I’m not going to
enjoy dying, but there’s not much prep for that.
october 21, 1956 – december 27, 2016