You see me, but you don't see Me

I am Tired, I am Weary, I am Restless,
And I am Still.
I am Confined by Bars, I am Imprisoned,
And I remain Calm.

You see me, but you don't see Me.

Inside I have Hopes, Inside I have Dreams,
Inside I'm an Eagle, Inside I am Free.
I Soar over valleys, I Perch on Mountains,
I Dive for Prey, and Stand for Pride.

You see me, but you don't see Me.

Instead I am Here, I am Stuck behind Bars,
Instead I am just a Bird, I am just a Display.
I Climb on the Walls, I Perch on the Poles,
I eat when I am Fed, and Stand for Nothing.

You see me, but you don't see Me.