48:3.15

7. Area and Building Custodians. Even the material and morontia structures increase in perfection and grandeur as you advance in the mansonia career. As individuals and as groups you are permitted to make certain changes in the abodes assigned as headquarters for your sojourn on the different mansion worlds. Many of the activities of these spheres take place in the open enclosures of the variously designated circles, squares, and triangles. The majority of the mansion world structures are roofless, being enclosures of magnificent construction and exquisite embellishment. The climatic and other physical conditions prevailing on the architectural worlds make roofs wholly unnecessary.