Lyric discussion by viciou5 

Cover art for Do lyrics by White Stripes, The

i feel like the last verse is about how the more exposure to he gets to and the more familiar he becomes with his old idols, the more his own ideas about the mystery and intrigue he felt they had about them start to fade and he loses the passion he once had. possibly feeling that they have qualities he finds undesirable in people, and that they are more common folk in a sense. the less he was certain of about them, the more he felt that they might have elevated thoughts and answers to things unknown.