Imagine the immense thrill and bewilderment you might feel if you hadn't been able to hear for some time -- or ever -- and were suddenly blessed again with the ability to listen to your mom's voice, or your favorite song.

Nikki Buck, of Perth, Australia, knows exactly what that's like. When she was 18, she suddenly and mysteriously lost all hearing. Doctors spent years trying to figure out what caused the loss, but were never able to determine what caused the problem -- how to repair it.

But then, when she was 32, Nikki was fitted with a cochlear implant, a new technology which has helped people regain their hearing. Waiting tentatively as the implants are turned on, Nikki and her parents hope for the best -- and are absolutely floored with the results. Enjoy!

(And check out these other awesome videos of people hearing for the first time from our friends at Buzzfeed.)