DISCUSSING THE DOMESTIC CHURCH
The family is often referred to as the domestic church because families are meant to be a microcosm of the universal Church. Part of preparing for marriage is preparing for the family apostolate of sanctifying the world from inside it. Learning about the role of the domestic church and how it can be lived to its fullest is the final part of proximate preparation.
John Paul's relevant text on proximate preparation:
"Finally, one must not overlook preparation for the family apostolate, for fraternal solidarity and collaboration with other families, for active membership in groups, associations, movements and undertakings set up for the human and Christian benefit of the family."