"The Catholic Church is committed to working for the reunion of all Christians, but the exuberant spirit following Vatican II has been tempered. Sober minds realize that the road to full unity will be long and arduous. One of the principal ecclesiological tasks is to discern the relationship between the Churches." Underlying the Catholic Church's pursuit of ecumenism is its recognition that elements of sanctification and truth are found in other churches, that these are real Christians and real Churches or ecclesial communities, and that our common baptism itself impels us toward greater unity.