The epitaph of all generations is: He was born; he lived; he died. One day your heart will forget to beat and the hearse will be at your door. Will you be ready?
When the Holy Spirit quietly moves in the heart of a repentant sinner and changes him into a son of God we call it the new birth. It is a marvelous work of grace that humanly cannot be explained but that must take place if you want to reach Heaven.