Regeneration, being born again, is one of the foundational doctrines, an important principle, of our Christian Faith. What does this actually mean for us? How ought we to live as Christians?
Without being born again, Jesus teaches that one cannot be part of the Kingdom of God. Without a new birth, or without regeneration, one is not saved. We need to be spiritually renewed by faith in Jesus in order to inherit eternal life and eternal joy in Him.