The song begins with the singer talking about how he feels like he's always trying to measure up but never quite making it. He feels like he's just a "zero" in comparison to everyone else. But then, he realizes that he doesn't have to be perfect in order to be loved and accepted. He learns that his value comes from being himself, not from trying to be someone he's not.
The chorus of the song is a powerful affirmation of self-worth:
"I am who I am, and I'm not gonna change
And I don't have to worry 'cause You love me just the same
I'm not a zero, I'm not invisible
I am, I am, I am, I am loved by You"
This song is a reminder that we don't have to be perfect in order to be loved and accepted. We are all valuable, simply because we are.