Evangelii Nuntiandi §62

62. Nevertheless this universal Church is in practice incarnate in the individual Churches made up of such or such an actual part of mankind, speaking such and such a language, heirs of a cultural patrimony, of a vision of the world, of an historical past, of a particular human substratum. Receptivity to the wealth of the individual Church corresponds to a special sensitivity of modern man.

Let us be very careful not to conceive of the universal Church as the sum, or, if one can say so, the more or less anomalous federation of essentially different individual Churches. In the mind of the Lord the Church is universal by vocation and mission, but when she puts down her roots in a variety of cultural, social and human terrains, she takes on different external expressions and appearances in each part of the world.

Thus each individual Church that would voluntarily cut itself off from the universal Church would lose its relationship to God's plan and would be impoverished in its ecclesial dimension. But, at the same time, a Church toto orbe diffusa would become an abstraction if she did not take body and life precisely through the individual Churches. Only continual attention to these two poles of the Church will enable us to perceive the richness of this relationship between the universal Church and the individual Churches.