It has also been a long since since Skellig himself can remember being without pain - even longer if you do not count the various methods of chemical & drug 'fixes' he has tried to ease his aches. So he knows that feeling, and can imagine the relief (and confusion) that comes with the absence of hurting.

"I am glad to see it worked," he says. "Sometimes with greater wounds, it can take a bit of extra time for everything to...settle."