[quote="Loyal_J, post:19, topic:305713"]
We ask for graces sometimes when we pray therefore although we already have grace we can get more.
We are required to go to mass every Sunday and** Vatican II wants us to receive in masses we participate in if possible**. Why would they want that if we got all the graces we need from one reception of the Eucharist?
Are you sure you're not confusing that with must be present for the whole Mass if you take Communion? I read somewhere that it got to be a problem with people going to Mass early, then race to another parish or two or three or more just to receive Communion again, so they'd get more Grace. Thus the limit was placed as well as specifying that you must participate in the Mass to receive.
Can. 917 A person who has already received the Most Holy Eucharist can receive it a second time on the same day only within the eucharistic celebration in which the person participates, without prejudice to the prescript of ⇒ can. 921, §2.
Can. 918 It is highly recommended that the faithful receive holy communion during the eucharistic celebration itself. It is to be administered outside the Mass, however, to those who request it for a just cause, with the liturgical rites being observed.
...Can. 920 §1. After being initiated into the Most Holy Eucharist, each of the faithful is obliged to receive holy communion at least once a year.
§2. This precept must be fulfilled during the Easter season unless it is fulfilled for a just cause at another time during the year.