In the crowds of visitors from every land thronging the stairs and pathways each day and the stream of distinguished guests who are welcomed to the World Centre’s reception rooms, perceptive minds already sense the dawning fulfilment of the vision recorded twenty-three hundred years ago by the prophet Isaiah: “And it shall come to pass in the last days, that the mountain of the Lord’s house shall be established in the top of the mountains, and shall be exalted above the hills; and all nations shall flow unto it.”