The significance of the chapter on Plato's theory of Being

One chapter in The Sacred History of Being is particularly difficult to understand as presented. It is the way it is because it concerns an argument by Plato concerning the nature of reality, and whether or not divine things can have a presence in the world. It also concerns how such a presence should be understood. The chapter is an assemblage of Platonic argument,  scattered through a number of dialogues. I'm not aware of any other attempt to reconstruct Plato's discussion of the natur...