Every time I watch this video, I'm amazed at its beauty. Hearing Joseph Smith's words come from a modern girl's mouth, while the other voices of our world shout opinions all around her, is so powerful. The girl in this video could have been me.
At some point, almost everyone feels the way young Joseph Smith did, when he was trying to choose which religion to join. "In the midst of this war of words and tumult of opinions, I often said to myself: What is to be done? Who of all these parties are right; or, are they all wrong together? If any one of them be right, which is it, and how shall I know it?"
I felt this confusion in my late teens and early 20's. I was raised in The Church of Jesus Christ of Latter Day Saints (a Mormon), but the world's shrill voices still called out their opinions, and it was sometimes hard to know what to believe. I prayed hard, sometimes through tears, and eventually learned, without a doubt that we have a Heavenly Father who loves us, and knows us. And that the fullness of Christ's gospel has been restored on the earth once more, including holy temples and living prophets (and apostles!) and families being together forever.
It's pretty cool stuff. Try it, you'll see :)