In reality, we can speak of four distinct levels of Church. There is the Universal Church led by the bishop of Rome and all bishops in union with him. There is the local diocesan church. Led by its local bishop, it is uniquely positioned to guide us on how best to implement our faith in our own time and culture. There is the local parish church, from which we receive most of our religious instruction and the sacraments. Finally, there is this fourth layer of Church. The Domestic Church plays a key role in our sanctification because it is the primary place where we practice coming to intimately love other persons.
Learn About the Four Tasks of the Family
Source: Archdiocese of Cincinnati