No one has ever seen God; the only God, who is at the Father’s side, he has made him known. John 1:18
As sinful humans, to look on God was to die. Sinful flesh just cannot look on a most holy God and live. In the Old Testament we see Moses seeing God in a burning bush. God is just too awesome for us. Then God took on human form in Jesus and we finally could look at God and not only live but live eternally. It is God the Son that humans can look upon God and interact physically with God.
The incarnation brought God to us and in doing so enabled those who chose to believe and follow Him to become children of God. This concept of Jesus as fully human fully God is hard for our finite minds to wrap itself around but it was only this way that God made it possible for us to put off our old sinful self and put on the righteousness of Christ.
God came down, He walked among us and He taught us. He willingly suffered a death on a cross, died and was resurrected. He defeated death for all that choose to follow Him. He did all this from a little backwater part of the mighty Roman Empire. A belief system that spread to the whole world and enables you and me to have eternal life.
Have a blessed day,