1.) Why does the priest only put the water in his cup?
There is no official document or mandate stating whether the priest should add water only to his chalice (the principal chalice) or to every chalice on the altar. It is the preference of some priests to add water to the cruet or flask of wine prior to distributing the wine amongst the chalices.
It is sure that in any event, the sacrament would be valid upon consecration.
The
General Instruction of the Roman Missal, which simply mentions “the chalice” gives no further clarification on the matter:
After this, as the minister presents the cruets, the priest stands at the side of the altar and pours wine and a little water into the chalice, saying quietly,
Per huius aquae (By the mystery of this water). He returns to the middle of the altar, takes the chalice with both hands, raises it a little, and says quietly,
Benedictus es, Domine (Blessed are you, Lord). Then he places the chalice on the corporal and covers it with a pall, as appropriate (142).
2.) Why is it mandatory for priests to have Mass every day?
It is not mandatory that priests celebrate Mass daily, although it is encouraged. The
Code of Canon Law states:
Remembering always that in the mystery of the eucharistic sacrifice the work of redemption is exercised continually, priests are to celebrate frequently; indeed, daily celebration is recommended earnestly since, even if the faithful cannot be present, it is the act of Christ and the Church in which priests fulfill their principal function (904).
3.) What happens if by some awful chance, the priest drops the Eucharist in accident?
The proper thing would be for him to pick it up from the floor and continue. He may consume it discretely out of courtesty.
Accidentally dropping the Host constitutes nothing formally illicit, immoral, or abusive. It was an accident.
