....back to my old Star Wars, Episode IV, inside the Millenium Falcon faith. Early in the original Star Wars, Luke's in the Falcon with Obi-Wan, trying to use his light saber to block the floating globe's little laser beams, and failing miserably. Then, Ben has Luke put down the blast shield on his helmet, rendering him blind. And he does fantastic.
Link (here) to Gone Walkabout by Fr. Jim McDermott, S.J.