[164.] “If participation at the celebration of the Eucharist is impossible on account of the absence of a sacred minister or for some other grave cause, then it is the Christian people’s right that the diocesan Bishop should provide as far as he is able for some celebration to be held on Sundays for that community under his authority and according to the Church’s norms. Sunday celebrations of this specific kind, however, are to be considered altogether extraordinary. All Deacons or lay members of Christ’s faithful who are assigned a part in such celebrations by the diocesan Bishop should strive “to keep alive in the community a genuine ‘hunger’ for the Eucharist, so that no opportunity for the celebration of Mass will ever be missed, also taking advantage of the occasional presence of a Priest who is not impeded by Church law from celebrating Mass.”