But this means more than simply that Christ is the center of our lives, it means Christ is our life. Look at what Paul said in Galatians 2:20,
"I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the son of God, who loved me and gave Himself for me."When Paul says that to live is Christ, he's not just saying that he lives for Christ, but literally that he lives Christ's life - that it is Christ that lives in and through him. As Christ lived through him, Paul's body became Christ's eyes, ears, mouth, hands, and feet - so Paul became the instrument by which Christ acted out His will. Even our wills become His, our minds become His. We are transformed more and more into the image of Christ. We become Christlike.
How else do you suppose God can transform our lives like He does? How else can he take us who are reprobate sinners and make us like Jesus? He does it as Christ lives through us. Christ comes to live within us, and He energizes us with His power and love. He literally lives through us.
St. Francis of Assisi is an example of a man transformed by Christ. Shortly after he trusted Christ, he sensed God telling him,
"Francis, all those things that you loved in the flesh you must now despise, and from those things that you formerly loathed you will drink great sweetness and immeasurable delight."Later, as Francis rode his horse out of town, he saw what he once despised - a leper. "During my life of sin," Francis wrote, "Nothing disgusted me like seeing victims of leprosy." What would Francis do? Exuberant in his new found faith and with joy flooding his soul, and remembering that he was now in love with and even treasured those things he once loathed; Francis leaped from his horse, knelt before the leper, and proceeded to kiss those deformed, diseased hands that had probably not felt human touch in years. Then he pressed money into those hands.
But he didn't stop there. He jumped back on his horse and rode to the nearest leper colony, and, as he recounts it, "begged their pardon for so often having despised them." then he gave them each money. He wouldn't leave until he had kissed each one of them. Francis was a transformed man. He was no longer the same. Christ now lived in and through Francis.