Ecumenical consciousness has not always been part of the Catholic experience. Frederick M. Bliss, S.M. traces how the concern for ecumenism came about_from uneasy tension to confidence in the true grace of catholicity. This new edition follows significant developments in dialogues with the Catholic Church up to 2006 and suggests likely trends of continuing change. It studies the forces that had an impact on the Second Vatican Council, forces that continue to steer the church into relationships with other Christian communities, other religions, and the world.