SECOND ENNEAD, BOOK TWO.
About the Movement of the Heavens.
QUESTIONS ABOUT THE MOVEMENTS OF THE HEAVENS.
1. Why do the heavens move in a circle? Because they imitate Intelligence. But to what does this movement belong? To the Soul, or to the body? Does it occur because the Soul is within the celestial sphere, which tends to revolve about her? Is the Soul within this sphere without being touched thereby? Does she cause this sphere to move by her own motion ? Perhaps the Soul which moves this sphere should not move it in the future, although she did so in the past; that is, the soul made it remain immovable, instead of ceaselessly imparting to it a circular movement. Perhaps the Soul herself might remain immovable; or, if she move at all, it will at least not be a local movement.
THREE KINDS OF MOVEMENT.
How can the Soul impart to the heavens a local movement, herself possessing a different kind of motion? Perhaps the circular movement, when considered by itself, may not seem a local movement. If then it be a local movement only by accident, what is its own nature, by itself? It is the reflection upon itself, the movement of consciousness, of reflection, of life; it withdraws nothing from the world, it changes the location of nothing, while embracing all. Indeed, the power which governs the universal Animal (or world) embraces everything, and unifies everything. If then it remained immovable, it would not embrace everything either vitally or . locally; it would not preserve the life of the interior parts of the body it possesses, because the bodily life implies movement. On the contrary, if it be a local movement, the Soul will possess a movement only such as it admits of. She will move, not only as soul, but as an animated body, and as an animal; her movement will partake both of the movement proper to the soul, and proper to the body. Now the movement proper to the body is to mobilize in a straight line; the movement proper to the Soul, is to contain; while both of these movements result in a third, the circular movement which includes both transportation and permanence.
FIRE MOVES STRAIGHT ONLY PRELIMINARILY.
To the assertion that the circular movement is a corporeal movement, it might be objected that one can see that every body, even fire, moves in a straight line. However, the fire moves in a straight line only till it reaches the place assigned to it by the universal order (it constitutes the heavens, which are its proper place). By virtue of this order its nature is permanent, and it moves towards its assigned location. Why then does the fire as soon as it has arrived there, not abide there quiescently ? Because its very nature is constant movement; if it went in a straight line, it would dissipate; consequently, it necessarily possesses a circular motion. That is surely a povidential arrangement. Providence placed fire within itself (because it constitutes the heavens, which are its location); so that, as soon as it finds itself in the sky it must spontaneously move in a circle.
WHY SOUL ASSUMES A CIRCULAR MOTION.
We might further say that, if the fire tended to move in a straight line, it must effect a return upon itself in the only place where it is possible (in the heavens), inasmuch as there is no place outside of the world where it could go. In fact there is no further place, beyond the celestial fire, for itself constitutes the last place in the universe; it therefore moves in a circle in the place at its disposal; it is its own place, but not to remain immovable, but to move. In a circle, the centre is naturally immovable; and were the circumference the same, it would be only an immense centre. It is therefore better that the fire should turn around the centre in this living and naturally organized body. Thus the fire will tend towards the centre, not in stopping, for it would lose its circular form, but in moving itself around it; thus only will it be able to satisfy its tendency (towards the universal Soul). However, if this power effect the movement of the body of the universe, it does not drag it like a burden, nor give it an impulsion contrary to its nature. For nature is constituted by nothing else than the order established by the universal Soul. Besides, as the whole Soul is everywhere, and is not divided into parts, it endows the sky with all the ubiquity it can assimilate, which can occur only by traversing all of it. If the Soul remained immovable in one place, she would remain immovable as soon as the-heavens reached this place; but as the Soul is everywhere, they would seek to reach her everywhere. Can the heavens never reach the Soul? On the contrary, they reach her ceaselessly; for the Soul, in ceaselessly attracting them to herself, endues them with a continual motion by which she carries them, not towards some other place, but towards herself, and in the same place, not in a straight line, but in a circle, and thus permits them to possess her in all the places which she traverses.
WHY THE HEAVENS DO NOT REMAIN STILL.
The heavens would be immovable if the Soul rested, that is, if she remained only in the intelligible world, where everything remains immovable. But because the Soul is in no one determinate place, and because the whole of her is everywhere, the heavens move through the whole of space; and as they cannot go out of themselves, they must move in a circle.
HOW OTHER BEINGS MOVE
2. How do the other beings move? As none of them is the whole, but only a part, consequently, each finds itself situated in a particular place. On the contrary, the heavens are the whole; they constitute the place which excludes nothing, because it is the universe. As to the law according to which men move, each of them, considered in his dependence towards the universe, is a part of all; considered in himself, he is a whole.
WHY THE HEAVENS MOVE IN A CIRCLE.
Now, if the heavens possess the Soul, wherever they are, what urges them to move in a circle ? Surely because the Soul is not exclusively in a determinate place (and the world does not exclusively in one place desire to possess her). Besides, if the power of the Soul revolve around the centre, it is once more evident that the heavens would move in a circle.
DIFFERENCE BETWEEN THE CENTRE OF THE SOUL AND THE BODY.
Besides, when we speak of the Soul, we must not understand the term “centre” in the same sense as when it is used of the body. For the Soul, the centre is the focus of (the intelligence) whence radiates a second life (that is, the Soul); as to the body, it is a locality (the centre of the world). Since, however, both soul and body need a centre, we are forced to use this word in an analogous meaning which may suit both of them. Speaking strictly, however, a centre can exist only for a spherical body, and the analogy consists in this, that the latter, like the Soul, effects a reflection upon itself. In this case, the Soul moves around the divinity, embraces Him, and clings to Him with all her might; for everything depends from Him. But, as she cannot unite herself to Him, she moves around Him.
THE ADDITION OF OUR BODIES INTRODUCES CONFLICTING MOTIONS.
Why do not all souls act like the universal Soul? They do act like her, but do so only in the place where they are. Why do our bodies riot move in a circle, like the heavens? Because they include an element whose natural motion is rectilinear; because they trend towards other objects, because the spherical element2 in us can no longer easily move in a circle, because it has become terrestrial, while in the celestial region is was light and movable enough. How indeed could it remain at rest, while the Soul was in motion, whatever this movement was? This spiritual body which, within us, is spread around the soul, does the same thing as do the heavens. Indeed, if the divinity be in everything, the Soul, which desires to unite herself to Him, must move around Him, since He resides in no determinate place. Consequently, Plato attributes to the stars, besides the revolution which they perform in common with the universe, a particular movement of rotation around their own centre. Indeed, every star, in whatever place it may be, is transported with joy while embracing the divinity; and this occurs not by reason, but by a natural necessity.
HOW MOTION IS IMPARTED TO LOWER EXISTENCES.
3. One more subject remains to be considered. The lowest power of the universal Soul (the inferior soul), rests on the earth, and thence radiates abroad throughout the universe. The (higher, or celestial) power (of the world-Soul) which, by nature, possesses sensation, opinion, and reasoning, resides in the celestial spheres, whence it dominates the inferior power, and communicates life to it. It thereby moves the inferior power, embracing it in a circle; and it presides over the universe as it returns (from the earth) to the celestial spheres. The inferior power, being circularly embraced by the superior power, reflects upon itself, and thus operates on itself a conversion by which it imparts a movement of rotation to the body within which it reacts. (This is how motion starts) in a sphere that is at rest: as soon as a part moves, the movement spreads to the rest of it, and the sphere begins to revolve. Not otherwise is our body; when our soul begins to move, as in joy, or in the expectation of welfare, although this movement be of a kind very different from that natural to a body, this soul-movement produces local motion in the body. Likewise the universal Soul, on high, while approaching the Good, and becoming more sensitive (to its proximity), thereby impresses the body with the motion proper to it, namely, the local movement. (Our own human) sense-(faculty), while receiving its good from above, and while enjoying the pleasures proper to its nature, pursues the Good, and, inasmuch as the Good is everywhere present, it is borne everywhere. The intelligence is moved likewise; it is simultaneously at rest and in motion, reflecting upon itself. Similarly the universe moves in a circle, though simultaneously standing still.