Essential Goal of Christianity???

[Aquila]

God became man... that man might become God.

Not that a man might become "a god"... but that man as a whole might become so full of God that we lose our identity and spiritual individuality in Him. God desires to be the all in all.

Christianity is therefore the hope of restored relationship with God through atonement.
Christianity is the hope of becoming united with God, one spirit, with the Lord through the Holy Spirit.
Christianity is God taking on humanity to elevate humanity into the divine essence.
Christianity is the hope of becoming one with God, and thereby fully realizing our place in Christ as sons and daughters of God.
Christianity is the realization of God flowing through us to manifest Himself in us.
Christianity is realizing that we are all but branches of the True Vine (Jesus Christ)... the church is one organism with God through Christ.

Therefore, our "holiness" emanates from the Father who dwells within us... it is not based on behavior. It's based on our state of being. We are holy as we surrender to allowing Him to manifest Himself in us... conforming us into the very image and likeness of Jesus Himself.