848. The vision of the city, etc., repeatedly disappears. This is usually preceded in the room by something like a large extended back, or a volume like a human back, and this extended thing rises up even to the roof. The roof then is seen with continuous rafters in a triangular form, as is usual with roofs in the cities of the world. The back or volume rises up and extends thither, and then on one side is seen an opening, as it were, of a sky-blue color, but in such a way that the rafters of the roof appear. Thus the phantasy of a city disappears.