  All this testifies to the exceptional status of the first movement, and behind it, of the first mover in the universe.  The mover of these spheres possesses nothing but actuality, but this actuality is not what is transmitted in the process of causation.  As we have seen in Section 3 above, this would not be exceptional as such: locomotion need not be caused on the transmission model of causation.  But locomotions caused without immediate transmission of some  actuality were understood to be be embedded in larger patterns of causation which observed the principle of causational synonymy, and it is exactly such a larger pattern of causation which is missing in the case of celestial motions.[48]  Instead, what we hear in Metaphysics 12.6 is that the first mover moves as an object of love and  striving,[49]  which comes perilously close to abandoning the claims of Physics bk. 8 to the effect that there is an unmoved mover serving as the efficient cause of the motions of the cosmos. Such doubts, however, should be dismissed. Aristotle is describing here in the terminology of his physics a supra-physical entity without which the universe could not function or persist.  Small wonder if its mode of operation needs to subsume several different dimensions of physical causation.