Paragraphs 10 through 13 address, “The Lord Calls.” The premise is simple, but not quite as easy as it sounds: every soul is called to be holy. It is a tradition for both Jews and Christians:
10. All this is important. Yet with this Exhortation I would like to insist primarily on the call to holiness that the Lord addresses to each of us, the call that he also addresses, personally, to you: “Be holy, for I am holy” (Lev 11:44; cf. 1 Pet 1:16). The Second Vatican Council stated this clearly: “Strengthened by so many and such great means of salvation, all the faithful, whatever their condition or state, are called by the Lord – each in his or her own way – to that perfect holiness by which the Father himself is perfect”.[Lumen Gentium 11]
The call to holiness was not abrogated in recent centuries. Perhaps it was de-emphasized. The notion of a cultic priesthood is that a class of religious leaders cultivate holiness on behalf of others who have less need to do so. Some have suggested that the so-called vocations crisis is simply a readjustment: there is no net loss of intentional holiness or religious life; it has only transferred to the laity. Obviously there’s no way to measure that in terms of something calculable. We can only have faith.