How Steely Dan Created ‘Deacon Blues’ – WSJ

“A mystical thing takes place and he’s suddenly aware of his surroundings and life, and starts thinking about his options. The “fine line” we use in the song [“So useless to ask me why / Throw a kiss and say goodbye / I’ll make it this time / I’m ready to cross that fine line”] is the dividing line between being a loser and winner, at least according to his own code. He’s obviously tried to cross it before without success.”