Ex opere operato
“is a Latin phrase meaning “from the work done” referring to the efficacy of the Sacraments deriving from the action of the Sacrament as opposed to the merits or holiness of the priest, minister, or participant.
In modern usage, the phrase often refers to the idea that sacraments are efficacious in and of themselves rather than depending on the attitude either of the minister or the recipient. For example, Confirmation might be held to bestow the Holy Spirit regardless of the attitude of both the bishop and the person being confirmed.”
At least you said IDEA...