According to Merriam-Webster the word sacrifice when used as a verb means:
to suffer loss of, give up, renounce, injure, or destroy especially for an ideal, belief, or end
Sacrifice requires action.
Romans 12:1 says:
Therefore, I urge you, brothers, in view of God’s mercy, to offer your bodies as living sacrifices, holy and pleasing to God—this is your spiritual[a] act of worship.
This is the sacrifice which God desires the most... us! That's it. He wants us... not just bits and pieces of us but all of us!
May the words of this beautiful hymn be the daily prayer of our heart.