Is the Sacrament Efficacious Only When One Has Faith?

In terms of the fcacy of the sacrament, is the sacrament efficacious only when one is of a certain posture of the heart? Or is it not the sacrament if the one receiving it does not have faith? So what you have to do there is navigate between the subjectivity of saying that the efficacy of the sac ent is only based on or the object there is no objectivity in the sacrament. And for ex a great example of this is calvin's view of the supper, ok? In calvin's perspective on the lord's supper, there is a partaking of christ in the sacrament of the altar when one believes. But it's partaking that happens through faith in