MacKenna-Plotinus: soul of the universe

Now even in the universal Intellect [Divine Mind] there was duality, so that we would expect differences of condition in things of part: how some things rather than others come to be receptacles of the divine beings will need to be examined; but all this we may leave aside until we are considering the mode in which soul comes to occupy body. For the moment we return to our argument against those who maintain our souls to be offshoots from the soul of the universe [parts and an identity modally parted]. Enneads   IV,3,1

They will object that parts must necessarily fall under one ideal-form with their wholes. And they will adduce Plato as expressing their view where, in demonstrating that the All is ensouled, he says "As our body is a portion of the body of the All, so our soul is a portion of the soul of the All." It is admitted on clear evidence that we are borne along by the Circuit of the All; we will be told that - taking character and destiny from it, strictly inbound with it - we must derive our souls, also, from what thus bears us up, and that as within ourselves every part absorbs from our soul so, analogically, we, standing as parts to the universe, absorb from the Soul of the All as parts of it. They will urge also that the dictum "The collective soul cares for all the unensouled," carries the same implication and could be uttered only in the belief that nothing whatever of later origin stands outside the soul of the universe, the only soul there can be there to concern itself with the unensouled. Enneads IV,3,1

Is it a question of part in the sense that, taking one living being, the soul in a finger might be called a part of the soul entire? This would carry the alternative that either there is no soul outside of body, or that - no soul being within body - the thing described as the soul of the universe is, none the less, outside the body of the universe. That is a point to be investigated, but for the present we must consider what kind of soul this parallel would give us. Enneads IV,3,3

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. Enneads IV,3,4

Now are we to hold similarly that your soul and mine and all are one, and that the same thing is true of the universe, the soul in all the several forms of life being one soul, not parcelled out in separate items, but an omnipresent identity? If the soul in me is a unity, why need that in the universe be otherwise seeing that there is no longer any question of bulk or body? And if that, too, is one soul and yours, and mine, belongs to it, then yours and mine must also be one: and if, again, the soul of the universe and mine depend from one soul, once more all must be one. Enneads IV,9,1