10. We have shown the inevitability of certain convictions as to the scheme of things:
There exists a Principle which transcends Being; this is The One, whose nature we have sought to establish in so far as such matters lend themselves to proof. Upon The One follows immediately the Principle which is at once Being and the Intellectual-Principle. Third comes the Principle, Soul.
Now just as these three exist for the system of Nature, so, we must hold, they exist for ourselves. I am not speaking of the material order- all that is separable- but of what lies beyond the sense realm in the same way as the Primals are beyond all the heavens; I mean the corresponding aspect of man, what Plato calls the Interior Man.
Thus our soul, too, is a divine thing, belonging to another order than sense; such is all that holds the rank of soul, but [above the life-principle] there is the soul perfected as containing Intellectual-Principle with its double phase, reasoning and giving the power to reason. The reasoning phase of the soul, needing no bodily organ for its thinking but maintaining, in purity, its distinctive Act that its thought may be uncontaminated- this we cannot err in placing, separate and not mingled into body, within the first Intellectual. We may not seek any point of space in which to seat it; it must be set outside of all space: its distinct quality, its separateness, its immateriality, demand that it be a thing alone, untouched by all of the bodily order. This is why we read of the universe that the Demiurge cast the soul around it from without- understand that phase of soul which is permanently seated in the Intellectual- and of ourselves that the charioteer's head reaches upwards towards the heights.
The admonition to sever soul from body is not, of course, to be understood spatially- that separation stands made in Nature- the reference is to holding our rank, to use of our thinking, to an attitude of alienation from the body in the effort to lead up and attach to the over-world, equally with the other, that phase of soul seated here and, alone, having to do with body, creating, moulding, spending its care upon it.