Question: Before the Prayer over the Gifts, the priest celebrant extends his hands, saying, “Pray, brethren, that my sacrifice and yours may be acceptable to God, the almighty Father.” Is the word "sacrifice" preferred to the Body and Blood of the Lord into which bread and wine will be transformed, or it simply means the gifts (bread and wine) on the altar at the moment? — A.P.H., Washington, D.C.