When I was in high school "Who ARE you?" and "No, SERIOUSLY...who are you??" were phrases used by a group of guys as a "hilarious" put-down! Generally, a few "Freak Show!! Freak Show!!"s were oh, so generously sprinkled in there as well.
As we have grown up, I am finding that many of us end up asking ourselves that very question, "Who am I?" Sometimes this is a superficial inquiry. Who am I--in regards to my career, to my friends, to my choice in clothing--can change from day to day and season to season.
But WHO we are in an Eternal sense will never really change. We are sons and daughters of a loving Heavenly Father, who has sent us to earth to learn, grown, and to become more like Him. Even when a person does wrong or even denies His existence, this does not change the fact that we are His children and He loves us. The scriptures are full of examples of God's dealings with Man. But we do not have to rely alone on the words of others.
We can have our own experiences with God through personal prayer. I know no other system of receiving information that is so perfect, so direct, so personal, so instantaneous, and yet leaves such a lasting impression as simply getting down on your knees and asking God to let you know that He is there...and to tell you, in no uncertain terms, Who you are!
I have done this myself. And through sincere prayer, I have felt a feeling, more tangible than anything I have ever known, that God exists, that I am his child, that He cares about my life.
Here are some more links about prayer to help you get the conversation started:
Pray Always - There are some good tips on the basics of How to Pray in this one...
The Lifeline of Prayer by James E. Faust
Using the Supernal Gift of Prayer by Richard G. Scott
The 3 C's
21 hours ago