I heard this song the first time when I was on the duty train going from Frankfurt to Berlin for an extended TDY. To say I'd been having a wild time on my tour of Europe would be an understatement. But I discovered* the song when I was re-examining who I was and what I should be doing versus what I was doing. At 23 or so, it was the right thing to be doing at the right time. It took a few more months before I calmed down and took my self-discovery to an action level.
This song always reminds me of that ride through the stark German night contemplating the person I needed to become. Never regret your past; it makes you who you are now, only regret not taking time to consider the things that might need to change to let you discover yourself.