Even in a crowded room, the song feels incredibly lonely.

The chorus is iconic: "I'm on the pursuit of happiness and I know everything that shine ain't always gonna be gold."

The "Nightmare" parenthetical in the title is the most honest part of the song. It suggests that the "pursuit" itself has become a haunting loop. You drink to forget the nightmare, but the lifestyle creates a new one.

The "I'll be fine" attitude sounds more like a mantra for survival than a statement of fact.