Sacrifices and offerings fill the Old Testament, as in Ezekiel 45:13-17, because whole burnt offerings needed to be offered to the Lord as a sign that the worshiper had given himself totally to the Lord, and the people needed to make peace offerings to the Lord, showing that they wanted peace with Him, and this was all for making atonement.
Sacrifices and offerings highlight what is most important in our lives, our relationship with God, the Creator of heaven and earth.
When you make sacrifices in your life to serve Him, He notices and it touches Him. Keep doing it and He shall touch your life.