77 We can now ask how much further we must travel until that blessed day when full unity in faith will be attained and we can celebrate together in peace the Holy Eucharist of the Lord. The greater mutual understanding and the doctrinal convergences already achieved between us, which have resulted in an affective and effective growth of communion, cannot suffice for the conscience of Christians who profess that the Church is one, holy, catholic and apostolic. The ultimate goal of the ecumenical movement is to re-establish full visible unity among all the baptized. In view of this goal, all the results so far attained are but one stage of the journey, however promising and positive.
Source: Ut Unum Sint (Vatican.va)