I'm pretty sure that this is about addiction to Cocaine and overcoming that addiction. Hence, the lines
'Little white lines on a mirror
Cut neatly in a row'
He's doing lines of coke. But the reference to the dollar bill in the first line is both a reference to the cost of the drugs and the fact that often a rolled up note is used to snort the lines. but that's just my 2 cents
I'm pretty sure that this is about addiction to Cocaine and overcoming that addiction. Hence, the lines 'Little white lines on a mirror Cut neatly in a row' He's doing lines of coke. But the reference to the dollar bill in the first line is both a reference to the cost of the drugs and the fact that often a rolled up note is used to snort the lines. but that's just my 2 cents