Sacrosanctum Concilium §27

²⁷ It is to be stressed that whenever rites, according to their specific nature, make provision for communal celebration involving the presence and active participation of the faithful, this way of celebrating them is to be preferred, so far as possible, to a celebration that is individual and quasi-private. This applies with especial force to the celebration of Mass and the administration of the sacraments, even though every Mass has of itself a public and social nature.