The birth of your child, the day you got married or engaged, when you got your driver's license, these events qualify many times for the happiest moments in a person's life.

Meredith Dennis can add one more to that list.

This girl had been through a number of hardships and homes in the hope of someday finding a forever family. Meredith got her wish, and her reaction to this surprise announcement is beautifully genuine and heart touching.

Even though this video is 3 years old, it is still as powerful as ever.