Who Am I

I don't recognize her--
The girl in the mirror;
She doesn't look like me,
     talk like me, think like me...
          who is she?
She is strong where I am weak
And then again, weak when I am strong--
If I could trade places,
Tag in and out like a game
If we shared this world
     together we are mighty
          invisible but invincible--
Who is she?
I dig deep to uncover her
Pull her from the depths,
From the pieces of reflective glass...
But I am afraid--
     if I push too hard,
          if I search too deep
The mirror will shatter
And she will disappear.