Jerusem is indeed a foretaste of paradisiacal glory and grandeur.  However, this first world of detention in the Paradise journey is far more material than spiritual.  Relative to higher architectural worlds, the system capitals are unique in that they are the only worlds which exhibit well-nigh perfectly all three phases of universe existence: the material, the morontial, and the spiritual.

We begin the reading in Paper 46, Section 2, Paragraph 5.