Tratado 15,1 (III,4,1) — A alma e suas potências (MacKenna)

1. Some Existents (Absolute Unity and Intellectual-Principle) remain at rest while their Hypostases, or Expressed-Idea, come into being; but, in our view, the Soul generates by its motion, to which is due the sensitive faculty – that in any of its expression-forms – Nature and all forms of life down to the vegetable order. Even as it is present in human beings the Soul carries its Expression-form (Hypostasis) with it, but is not the dominant since it is not the whole man (humanity including the Intellectual Principal, as well): in the vegetable order it is the highest since there is nothing to rival it; but at this phase it is no longer reproductive, or, at least, what it produces is of quite another order; here life ceases; all later production is lifeless.

What does this imply?

Everything the Soul engenders down to this point comes into being shapeless, and takes form by orientation towards its author and supporter: therefore the thing engendered on the further side can be no image of the Soul, since it is not even alive; it must be an utter Indetermination. No doubt even in things of the nearer order there was indetermination, but within a form; they were undetermined not utterly but only in contrast with their perfect state: at this extreme point we have the utter lack of determination. Let it be raised to its highest degree and it becomes body by taking such shape as serves its scope; then it becomes the recipient of its author and sustainer: this presence in body is the only example of the boundaries of Higher Existents running into the boundary of the Lower.