"If the Church really sees itself as the people of God,
it is obvious that it can never be a static and supra-historical phenomenon,
which exists undisturbed by earthly space and historical time.
The Church is always and everywhere a living people,
gathered together from the peoples of this world
and journeying through the midst of time.
The Church is essentially en route, on a journey, a pilgrimage.
A Church which pitches its tents without looking out constantly for new horizons,
which does not continually strike camp, is being untrue to its calling."