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After the Council, Paul VI contributed in two ways to the continued growth of ecumenical dialogue. The separated brothers and sisters, as he called them, were not able to contribute to the Council as invited observers. After the Council, many of them took initiative to seek out their Catholic counterparts and the Pope in Rome, who welcomed such visits. But the Catholic Church itself recognized from the many previous ecumenical encounters, that much needed to be done within, to be an open partner for ecumenism. To those who are entrusted the highest and deepest truth and therefore, so Paul VI, believed that he had the most difficult part to communicate. Ecumenical dialogue, in the view of Paul VI, requires from a Catholic the whole person: one's entire reason, will, and heart. Paul VI, like Pius XII before him, was reluctant to give in on a lowest possible point. And yet, Paul felt compelled to admit his ardent Gospel-based desire to be everything to everybody and to help all people Being the successor of Peter, he felt the words of Christ, "Do you love me more" like a sharp knife penetrating to the marrow of his soul. These words meant to Paul VI love without limits, and they underscore the Church's fundamental approach to ecumenism.
Pope Paul VI