Creation is nothing but a dream arising out of the imagination of God. And if it's all right for God to dream things or imagine them, then what harm that we do also? Wandho soo che, as they say in the Gujarati dialect.
This, however, is a shallow observation, for man shall not do what God says. And God says (see The Everything and The Nothing) that we should do our best to try and overcome the habit of day-dreaming and night-dreaming and strive to become fully awake in deep sleep. But that is impossible without God's Grace—and by "God" is meant not a Deity of imagination fixed in a creed or dogma, but a living perfect Man; for the God who is in His heaven stays there, and all would not be at all well with the world if it were not for the God who is in a Man keenly attentive to our needs.
The question, whether the East-West Gathering was an experience in imagination when awake, or a dreaming whilst asleep is, as said, not important. It is of academic interest, bones for sophists and pundits of a later time to gnaw and growl over, not a practical issue with us. For now let us settle for the word "dreaming"; it is a long, cool word with sedative undertones suited to memory and reflection, and "imagination" is a bright word bristling with over-tones. Also, since the book under consideration is a work of imagination, it is "intriguing" to think of it as an imaginative interpretation of a dreaming.
The whole Creation is a dreaming—the One Being dreaming It is many beings, and each of the many beings dreaming it is the most important. For ages God-Man has been giving us precepts of conduct to help us overcome this absurd idea of self-importance and so overcome that aspect of the dream which most causes misery. But we have been deaf to his teachings and have even turned them into propaganda of oppression—indoctrinating the already helpless with a doctrine of weakness so that the strong could without disturbance fatten themselves on the flesh of their labor.
God-Man has become tired of scattering his pearls before the swine-of-us, and prefers this time (this Advent) to convey his Message of Love and Truth through personal contact—to sit with people and talk the small talk of the day, to listen to the music they make, and crack jokes with them—that they might, not overcome dreaming altogether, but at least awaken from the grosser aspects of it.
So there have been many Gatherings at different times and places for selected groups of people. But this particular Gathering was for all who wished to come from anywhere.