4. But if this is the true account of the unity of soul, we must be able to meet the problems that ensue: firstly, the difficulty of one thing being present at the same moment in all things; and, secondly, the difficulty of soul in body as against soul not embodied.
We might be led to think that all soul must always inhabit body; this would seem especially plausible in the case of the soul of the universe, not thought of as ever leaving its body as the human soul does: there exists, no doubt, an opinion that even the human soul, while it must leave the body, cannot become an utterly disembodied thing; but assuming its complete disembodiment, how comes it that the human soul can go free of the body but the All-Soul not, though they are one and the same?
There is no such difficulty in the case of the Intellectual-Principle; by the primal differentiation, this separates, no doubt, into partial things of widely varying nature, but eternal unity is secured by virtue of the eternal identity of that Essence: it is not so easy to explain how, in the case of the soul described as separate among bodies, such differentiated souls can remain one thing.