Nine Inch Nails - Right Where It Belongs Wrote:See the animal in his cage that you built,
Are you sure what side you're on?
Better not look him too closely in the eye,
Are you sure what side of the glass you are on?
See the safety of the life you have built
Everything where it belongs
Feel the hollowness inside of your heart
And it's all, right where it belongs

What if everything around you,
Isn't quite as it seems?
What if all the world you think you know,
Is an elaborate dream?
And if you look at your reflection,
Is that all you want to be?
What if you could look right through the cracks,
Would you find yourself, find yourself afraid to see?

What if all the worlds inside of your head,
Just creations of your own?
Your devils and your Gods, all the living and the dead
And you're really all alone?
You could live in this illusion
You can choose to believe
You keep looking but you can't find the woods
While you're hiding in the trees

What if everything around you,
Isn't quite as it seems?
What if all the world you used to know,
Is an elaborate dream?
And if you look at your reflection,
Is that all you want to be?
What if you could look right through the cracks,
Would you find yourself, find yourself afraid to see?