Wherever earthy substance exists, which may be traversed by the feet, that constitutes the sphere of the earth, the dimensions of which I have already recounted to you. The region that extends from the earth to the sun, in which the Siddhas and other celestial beings move, is the atmospheric sphere, which also I have described. The interval between the sun and Dhruva, extending fourteen hundred thousand leagues, is called by those who are acquainted with the system of the universe the heavenly sphere. These three spheres are termed transitory: the three highest, Jana, Tapa, and Satya, are styled durable 4: Maharloka, as situated between the two, has also a mixed character; for although it is deserted at the end of the Kalpa, it is not destroyed. These seven spheres, together with the Pátálas, forming the extent of the whole world, I have thus, Maitreya, explained to you.
The world is encompassed on every side and above and below by the shell of the egg of Brahmá, in the same manner as the seed of the wood-apple 5 is invested by its rind. Around the outer surface of the shell flows water, for a space equal to ten times the diameter of the world. The waters, again, are encompassed exteriorly by fire; fire by air; and air by Mind; Mind by the origin of the elements (Ahankára); and that by Intellect: each of these extends ten times the breadth of that which
it encloses; and the last is encircled by the chief Principle, Pradhána 6, which is infinite, and its extent cannot be enumerated: it is therefore called the boundless and illimitable cause of all existing things, supreme nature, or Prakriti; the cause of all mundane eggs, of which there are thousands and tens of thousands, and millions and thousands of millions, such as has been described 7. Within Pradhána resides Soul, diffusive, conscious, and self-irradiating, as fire is inherent in flint 8, or sesamum oil in its seed. Nature (Pradhána) and soul (Pumán) are both of the character of dependants, and are encompassed by the energy of Vishńu, which is one with the soul of the world, and which is the cause of the separation of those two (soul and nature) at the period of dissolution; of their aggregation in the continuance of things; and of their combination at the season of creation 9. In the same manner as the wind ruffles the surface of the water in a hundred bubbles, which of themselves are inert, so the energy of Vishńu influences the world, consisting of inert nature and soul. Again, as a tree, consisting of root, stem, and branches, springs from a primitive seed, and produces other seeds, whence grow other trees analogous to the first in species, product, and origin, so from the first unexpanded germ (of nature, or Pradhána) spring Mahat (Intellect)