When I was in my mother's body I used her blood and nervous system which conditioned and trained me how to think, react and perceive reality. Her emotions became my emotions, her feelings my feelings, her fears and joys mine.
To be born again I need an umbilical cord to God to use His blood and nervous system. I need to have a vital connection with Him/Her so intimate that God's feelings, passions and impulses are reflected and expressed in me.