I have a magic mirror, its only one of a kind.
I look into it daily, and no wrinkles do I find.
I see a young girl smiling, is that really me?
She is looking towards a future that she can plainly see.
Then my mirror changes, right before my eyes,
The years have passed before me, I hope they have made me wise.
I doubt that I could be different, I doubt I could be smart.
But one thing I know clearly, I would have a trusting heart.

Harriet Hoffman Stern

http://www.poemhunter.com/poem/mirror-mirror-on-my-wall/