Jesus Christ was born on earth to redeem all of God's people unto Himself by showing us how we should live as He had lived on earth in flesh body and dying on the cross for our sins. We are to live the life of service, life of studying scriptures, and life of prayer as He had done. In present time we also have blessing of living prophet appointed by Heavenly Father to guide us in these end times.  This will lead us safely home to presence of Heavenly Father where we can live eternally with Him and our families.
Mosiah 15:2-3 says of Jesus Christ, " and because He dwelleth in flesh He shall be called the Son of God, and having subjected the flesh to the will of the Father, being the Father and the Son.
The Father, because he was conceived by the power of God; thus becoming the Father and Son."
Our Lord Jesus Christ came from heaven to fulfill His purpose of redeeming His people through faithfulness and obedience even unto death.  We too can endure to the end with help of His teachings and guidance of His chosen people so that we can fulfill our purpose in walking the path that leads to Heavenly Father's presence, the greatest gift our hearts will ever receive.