I believe this a song about the feeling of someone who has once been a Strong and confident character, and something happened to him that knocked him off that tower.
Something caused a slip in strength, and its not only effected his success but also his ability to climb back up. And with every failure it slips a little further.
To the point where even his friends/wife no longer see things the same way or understand on another. And yet he's unable to face that problem for fear of effecting himself further.
"Oh but never mind"
I believe this a song about the feeling of someone who has once been a Strong and confident character, and something happened to him that knocked him off that tower. Something caused a slip in strength, and its not only effected his success but also his ability to climb back up. And with every failure it slips a little further. To the point where even his friends/wife no longer see things the same way or understand on another. And yet he's unable to face that problem for fear of effecting himself further. "Oh but never mind"