The opening of the celebration is a welcome to all who come to Mass, and at the same time, it attracts the hearts and souls of the faithful to focus on the celebration, it can be interpreted as a gathering. In the opening song, the priest enters with all the ministers at the sacrifice, during which there is also a greeting and preparation for the intercession... Catechism on the Eucharist, with P. Justolat Rafaralahimboa.