The offertory. During the offertory, God accepts the Sacrifice of His Son through the prayer of the priest. Jesus prepares Himself for what He will have to live through. He completely surrenders to the Will of the Father and to the cruelty of man. Now begins a slow and prolonged torment of His Soul and body. The more painful are these torments, the longer they seem to last. The priest is preparing to make the Sacrifice. He is also preparing to make an offering of himself. While performing the liturgical actions, he should do them with great thoughtfulness. Always, in every Holy Mass, the daily one and the solemn one, the sacrifice is the same and it is God Himself.
Translated from : Tajemnica Mszy świętej według św. Ojca Pio na podstawie Orędzi na Czasy Ostateczne które własnie nadeszły, Grzechynia 2013, p. 33