potential of the Infinite is still self-contained and unrevealed. To created beings the master universe might appear to be almost infinite, but it is far from finished; there are still physical limits to the material creation, and the experiential revelation of the eternal purpose is still in progress.
1. SPACE LEVELS OF THE MASTER UNIVERSE
12:1.1 The universe of universes is not an infinite plane, a boundless cube, nor a limitless circle; it certainly has dimensions. The laws of physical organization and administration prove conclusively that the whole vast aggregation of force-energy and matter-power functions ultimately as a space unit, as an organized and co-ordinated whole. The observable behaviour of the material creation constitutes evidence of a physical universe of definite limits. The final proof of both a circular and delimited universe is afforded by the, to us, well-known fact that all forms of basic energy ever swing around the curved path of the space levels of the master universe in obedience to the incessant and absolute pull of Paradise gravity.
12:1.2 The successive space levels of the master universe constitute the major divisions of pervaded space — total creation, organized and partially inhabited or yet to be organized and inhabited. If the master universe were not a series of elliptical space levels of lessened resistance to motion, alternating with zones of relative quiescence, we conceive that some of the cosmic energies would be observed to shoot off on an infinite range, off on a straight-line path into trackless space; but we never find force, energy, or matter thus behaving; ever they whirl, always swinging onward in the tracks of the great space circuits.
12:1.3 ¶ Proceeding outward from Paradise through the horizontal extension of pervaded space, the master universe is existent in six concentric ellipses, the space levels encircling the central Isle:
12:1.4 1. The Central Universe — Havona.
12:1.5 2. The Seven Superuniverses.
12:1.6 3. The First Outer Space Level.
12:1.7 4. The Second Outer Space Level.
12:1.8 5. The Third Outer Space Level.
12:1.9 6. The Fourth and Outermost Space Level.
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12:1.15 Still greater activities are taking place beyond these regions, for the Uversa physicists have detected early evidence of force manifestations more than 50,000,000 light-years beyond the outermost ranges of the phenomena in the first outer space level. These activities undoubtedly presage the organization of the material creations of the second outer space level of the master universe.
12:1.16 The central universe is the creation of eternity; the seven superuniverses are the creations of time; the four outer space levels are undoubtedly destined to eventuate-evolve the ultimacy of creation. And there are those who maintain that the Infinite can never attain full expression short of infinity; and therefore do they postulate an additional and unrevealed creation beyond the fourth and outermost space level, a possible ever- expanding, never-ending universe of infinity. In theory we do not know how to limit either the infinity of the Creator or the potential infinity of creation, but as it exists and is administered, we regard the master universe as having limitations, as being definitely delimited and bounded on its outer margins by open space.
2. THE DOMAINS OF THE UNQUALIFIED ABSOLUTE
12:2.1 When Urantia astronomers peer through their increasingly powerful telescopes into the mysterious stretches of outer space and there behold the amazing evolution of almost countless physical universes, they should realize that they are gazing upon the mighty outworking of the unsearchable plans of the Architects of the Master Universe. True, we do possess evidences which are suggestive of the presence of certain Paradise personality influences here and there throughout the vast energy manifestations now characteristic of these outer regions, but from the larger viewpoint the space regions extending beyond the outer borders of the seven superuniverses are generally recognized as constituting the domains of the Unqualified Absolute.
12:2.2 Although the unaided human eye can see only two or three nebulae outside the borders of the superuniverse of Orvonton, your telescopes literally reveal millions upon millions of these physical universes in process of formation. Most of the starry realms visually exposed to the search of your present-day telescopes are in Orvonton, but with photographic technique the larger telescopes penetrate far beyond the borders of the grand universe into the domains of outer space, where untold universes are in process of organization. And there are yet other millions of universes beyond the range of your present instruments.
12:2.3 In the not-distant future, new telescopes will reveal to the wondering gaze of Urantian astronomers no less than 375,000,000 new galaxies in the remote stretches of outer space. At the same time these more powerful telescopes will disclose that many island universes formerly believed to be in outer space are really a part of the galactic system of Orvonton. The seven superuniverses are still growing; the periphery of each is gradually expanding; new nebulae are constantly being stabilized and organized; and some of the nebulae which