Let Me In The Sound

Writer R.S. Toss, who may or may not have been reading a few of the recent comboxes here, publishes a guest article about his interpretation of the lyric "Let Me In The Sound" at @U2. Try as I may, I can't make myself believe that "sound" means anything but an aural "sound" in this text, even though his argumentation intellectually makes more sense; however, your mileage may vary. Incidentally, anyone have anything to say about the repeated glass-shattering -- one thing that made it almost unchanged to the rather more decorous final version -- at this point in the video?