Lyric discussion by gobbly 

Cover art for Even Deeper lyrics by Nine Inch Nails

To me this song is about depression. It's the feeling of sliding back 2 feet for every foot you climb out of a pit. There are 2 lines that really hit home for me:

"sometimes, I have everything yet I wish I felt something"

"In a dream I'm a different me with a perfect you, we fit perfectly. For once in my life I feel complete- and I still want to ruin it."

This, to me, is depression. No matter what you have, what you accomplish, who you are, it's never enough. There is a need that is unfulfilled, a need that will always run even deeper. Living with something like that makes you self-destructive. You work so hard to try to feel good that in the process you destroy the things that matter in your life, the things that should make you happy, slipping another 2 feet down the hole.