Lyric discussion by FalseDeity 

Cover art for Discipline lyrics by Nine Inch Nails

I mean it could be about drugs, but I feel like that era's closed and done. Trent's done so much with himself in recent years, including buffing up and cutting his hair. Seems weird he'd be writing a song about drugs now.

"Is my viciousness, Losing ground, ground, ground, ground, ground?"

Sounds like he's concerned that his flame is dwindling down.