I think it's along the line of sending a message to participants in a meeting to be held among various churches (including representatives of the Catholic Church), ecclesial communities, and other major world religions.
It's not the same message Christ gave to his disciples:
19 Going therefore, teach ye all nations; baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. 20 Teaching them to observe all things whatsoever I have commanded you: and behold I am with you all days, even to the consummation of the world.