What is the difference between living for the Lord and living to Him?

And He died for all that those who live may no longer live to themselves but to Him who died for them and has been raised. (2 Cor. 5:15)

“Living to the Lord is deeper in significance than living for the Lord. Living for the Lord implies that I and the Lord are still two; living to the Lord indicates that I am one with the Lord, as the wife is one with the husband in married life.”

(2 Cor. 5:15, footnote 2)