Quoting Paul here: "I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me." (Gal 2:20)
I actually wrote an entire devotional on this verse last April. Ever since I became a Christian, this has just been one of those verses that I have clung to.
It's such a wonderful reminder of the glory of the Gospel of Christ; what's not to love?
As Christians, I believe that this is a verse that we need to remind ourselves of not just day to day, but moment by moment-- dying to ourselves and living hidden in Christ.