Answer: Certainly the Eucharistic celebration is an act of the community, which is carried out by all the members of the liturgical assembly. Yet each person ought to have and keep his own place and the role proper to himself: « each minister or member of the faithful, performing his own role, should exercise solely and completely what pertains to him according the nature of the matter and the liturgical norms » (« Sacrosanctum Concilium », n. 28).