Jesus Christ, the Divine Son, is the cornerstone of Christianity. The Living Jesus was an avatar, or a God come to earth in human form. He was the promised Son of God, the Savior and the Messiah.
The purpose of Jesus' arrival upon this earth certainly is multifaceted. To the Jews, Jesus was to be the deliverer of the people from the oppression of the Roman Empire. To the early Christians of the first three centuries, Jesus came to save the people from the jealous and bitter Old Testament God. To modern Christians, Jesus came to the earth to save all sinners from the Original Sin committed by Adam and Eve.
Still more spiritual and less dogmatic Christians believe Jesus came to earth to present His teachings of heavenly love, set the exemplary life for all of His followers and advise His apostles on the way His church, and the worship of His Father, should be conducted after his death. He was born to the Blessed Virgin Mary, as an immaculate conception and his human father was Joseph, the carpenter.
Christ was born in a manger as an indicator of the humblest beginnings of us all. He remained a humble and lowly man for his entire life, of very few earthly possessions; instead, He taught that one should lay up their treasures in Heaven. Throughout His ministries, He healed the sick, caused the blind to see, and preached of the Kingdom of Heaven yet to come. He was crucified and died, but after three days, rose again to join His Father in Heaven.
As the Child aspect of the Triune God, Jesus represents the unification of the Father and Mother, the bringing of new life, and the promise of the better future. He is symbolic of the completion of the Wiccan Wheel of Life; He was born, He lived out His life, He died, and rose again to join / become the Father. In the Old Religion, Jesus has lived a life similar, if not parallel, to young solar gods in many cultures such as Apollo, Janus, Cronos, Horus, and Ra.