Adam was born spiritually and physically alive, but lost the spiritual life when he sinned, so all descendants were born spiritually dead. Christ, however, was not born like regular man. Conceived of the spirit of God, he was born spiritually alive. He kept it to the cross, where he bore the payment for our sins. Jesus said we must be born again.
Spiritual birth brings eternal life.
This birth brings a union betwen you and God and your name was written in the Lamb's book of life. Our eternal life does not begin when we die, it begins the moment we accept Christ as our Savior. This new life brings new identity. Once I realized this, I turned from Lori trying to be a Christian, to Lori a child of the king. Just like we inherited life and death from Adam, when we accpeted Jesus we also became a part of his inheritance.