α. The unity of life he thus determines as the universal, active understanding (νοῦς), which manifests itself as the universal form of all the world, and comprehends all forms in itself; it bears the same relation to the production of natural objects as does the understanding of man, and moulds and systematizes them, as the human understanding moulds the multitude of its concepts. It is the artist within, who shapes and forms the material without. From within the root or the seed-grain it makes the shoot come forth; from this again it brings the branches, and from them the twigs, and from out of the twigs it calls forth the buds, and leaves, and flowers. All is planned, prepared and perfected within. In the same way this universal reason within calls back their saps from the fruits and blossoms to the twigs, and so on. The universe is thus an infinite animal, in which all things live and move and have their being in modes the most diverse. The formal understanding is thus in no wise different from the Final Cause (the Notion of end, the entelechy, the unmoved principle, which we meet with in Aristotle); but these are just as truly also active understanding, the efficient cause (_causa efficiens_), this same producing force. Nature and Spirit are not separated; their unity is the formal understanding, in which is contained the pure Notion, not as in consciousness, but as free and independent, remaining within itself, and at the same time exercising activity and passing beyond itself. The understanding working towards one particular end is the inward form of the thing itself, an inward principle of the understanding. What is continually produced is in accordance with this form, and contained within it; what appears is determined as the form is in itself determined.[75] With Proclus in the same way the understanding, as substantial, is that which includes all things in its unity: life is the outgoing, the producing force: and the understanding as such similarly includes the returning force, which brings all things back into unity. In dealing with Kant’s philosophy we shall have again to mention this determination of final purpose. That which has organic life, whose principle is formative, which has its efficacy in itself, and in the same only remains at home with itself and maintains itself, is nothing but the end, the activity determined in itself, which in its relation to what is different does not comport itself as mere cause, but returns upon itself.