P174:1, 15:7.1 While each superuniverse government presides near the center of the evolutionary universes of its space segment, it occupies a world made to order and is peopled by accredited personalities. These headquarters worlds are architectural spheres, space bodies specifically constructed for their special purpose. While sharing the light of near-by suns, these spheres are independently lighted and heated. Each has a sun which gives forth light without heat, like the satellites of Paradise, while each is supplied with heat by the circulation of certain energy currents near the surface of the sphere. These headquarters worlds belong to one of the greater systems situated near the astronomical center of their respective superuniverses.
P174:2, 15:7.2 Time is standardized on the headquarters of the superuniverses. The standard day of the superuniverse of Orvonton is equal to almost thirty days of Urantia time, and the Orvonton year equals one hundred standard days. This Uversa year is standard in the seventh superuniverse, and it is twenty-two minutes short of three thousand days of Urantia time, about eight and one fifth of your years.
P174:3, 15:7.3 The headquarters worlds of the seven superuniverses partake of the nature and grandeur of Paradise, their central pattern of perfection. In reality, all headquarters worlds are paradisiacal. They are indeed heavenly abodes, and they increase in material size, morontia beauty, and spirit glory from Jerusem to the central Isle. And all the satellites of these headquarters worlds are also architectural spheres.
P174:4, 15:7.4 The various headquarters worlds are provided with every phase of material and spiritual creation. All kinds of material, morontial, and spiritual beings are at home on these rendezvous worlds of the universes. As mortal creatures ascend the universe, passing from the material to the spiritual realms, they never lose their appreciation for, and enjoyment of, their former levels of existence.
P174:5, 15:7.5 Jerusem, the headquarters of your local system of Satania, has its seven worlds of transition culture, each of which is encircled by seven satellites, among which are the seven mansion worlds of morontia detention, man's first postmortal residence. As the term heaven has been used on Urantia, it has sometimes meant these seven mansion worlds, the first mansion world being denominated the first heaven, and so on to the seventh.
P174:6, 15:7.6 Edentia, the headquarters of your constellation of Norlatiadek, has its seventy satellites of socializing culture and training, on which ascenders sojourn upon the completion of the Jerusem regime of personality mobilization, unification, and realization.
P174:7, 15:7.7 Salvington, the capital of Nebadon, your local universe, is surrounded by ten university clusters of forty-nine spheres each. Hereon is man spiritualized following his constellation socialization.
P174:8, 15:7.8 Uminor the third, the headquarters of your minor sector, Ensa, is surrounded by the seven spheres of the higher physical studies of the ascendant life.
P174:9, 15:7.9 Umajor the fifth, the headquarters of your major sector, Splandon, is surrounded by the seventy spheres of the advancing intellectual training of the superuniverse.
P175:1, 15:7.10 Uversa, the headquarters of Orvonton, your superuniverse, is immediately surrounded by the seven higher universities of advanced spiritual training for ascending will creatures. Each of these seven clusters of wonder spheres consists of seventy specialized worlds containing thousands upon thousands of replete institutions and organizations devoted to universe training and spirit culture wherein the pilgrims of time are re-educated and re-examined preparatory to their long flight to Havona. The arriving pilgrims of time are always received on these associated worlds, but the departing graduates are always dispatched for Havona direct from the shores of Uversa.
P175:2, 15:7.11 Uversa is the spiritual and administrative headquarters for approximately one trillion inhabited or inhabitable worlds. The glory, grandeur, and perfection of the Orvonton capital surpass any of the wonders of the time-space creations.
P175:3, 15:7.12 If all the projected local universes and their component parts were established, there would be slightly less than five hundred billion architectural worlds in the seven superuniverses.