Rules C to K applied to Light

The second Rule, regarding Quiddity, signified by C.
1. What is light? The solution to this question is signified by the second Question or Rule in the second part of the first distinction. Light is a being that illuminates things, for instance, candlelight illuminates lamplight and air, and a Doctor enlightens himself with the habit of science as he enlightens his students.

2. What does light have in itself coessentially and naturally? The solution to this question is signified by the second Rule in the first distinction; now light has in itself its own innate constituent parts, namely the illuminative, illuminable and their act of illuminating: like the light of a candle whose innate illuminative, in its own innate illuminable, illuminates illuminated air and produces illuminated lamplight in its own illuminable as it brings it from potentiality into act by way of generation: likewise, an Angel acts on things below with its innate powers in its own innate matter whereby it  perceives colors in general without using eyes, voices without using ears and moving bodies without using touch, etc.

3. What is light in other things? The solution to this question is signified by the second Rule in the first distinction, now light is a disposing agent in air as it enables the power of sight to attain white color that disperses the sight and black color that focuses the sight.

4. What does light have in other things? The solution to this question is signified by the second Rule in the first distinction, now light has action in the air it illuminates and passion in the power of sight that uses it to see color, and light with its virtue has action in the power of sight, as in the eye which is an illuminated organ joined to the power of sight that endows it with sense and the power to see.

The third Rule, "Of What" signified by D.
1. Of what origin is light? The solution to this question is signified by the third Rule in the second part of the first distinction; now the Sun's light exists primordially in its own right, as does the motion of the eighth sphere because at their natural origin they are not derived from anything else.

2. What does light consist of? The solution to this question is signified by the third Rule in the second part of the first distinction: now light consists of its own coessential lucificative, lucificable and their act of lucification, the light of a lamp is made from that of a candle and elemented candlelight consists of the light of simple fire; and the light of air is peregrine because it accidentally consists of candlelight; and moonlight is made of sunlight; and Saturn's motion consists of the motion of the eighth sphere at the antipodes that drives planets from west to east in our side of the sky like water moving a mill wheel by driving its lower part so that the upper part moves.

3. To whom does light belong? The solution to this question is signified by the third species of the Rule in the first distinction: now candlelight belongs to sunlight because the heavenly bodies above effectively and virtually possess bodies here below; like divine intellect possesses human intellect, and the heat of fire possesses the heat of air and that of hot water.

The Fourth Rule, "Why?" signified by E
1. Why is there light? The solution to this question is signified by the fourth Rule in the second part of the first distinction; now candlelight is necessarily caused by its own constituting coessential, substantial and natural lucificative, lucificable and lucification, and the light of a lamp is naturally caused by candlelight but it is occasioned by contingency when someone happens to light a lamp with light from a candle; and the light in air exists because its cause exists, namely candlelight that causes the peregrine light in air, outwardly in its own necessary lucificable.

2. Why is there candlelight? The solution to this question is signified by the fourth Rule in the second part of the first distinction; now candlelight exists for lighting up the air and light exists in air to dispel the darkness in it so that sighted beings can see objects that cannot be seen if the air is not lit up.

The Fifth Rule or Rule of Quantity, signified by F
What is the quantity of candlelight? The solution to this question is signified by Rule F in the second part of the first distinction; now candlelight in continuous quantity is one body in one undivided quantity through all its discrete quantities sustained in its physical parts, namely the lucificative, lucificable and their act of lucification.

And candlelight has two quantities, one proper and one appropriated or peregrine. Its proper quantity is its own quantifying quantity  and its peregrine quantity is the quantity of light in air derived from the said proper quantity, and this peregrine quantity illuminates stones, horses, etc.  Now the quantity sustained in the lucificative, lucificable and their act of lucification is neither visible nor measurable, it is only visible as the light of a flame with shape and color and situation inasmuch as it is joined to physical being, and even so it cannot be sensed by touch although its color is visible.

The Sixth Rule, or Rule of Quality, signified by G.
What is the quality of candlelight? The solution to this question is signified by Rule G in the second part of the first distinction; now candlelight has two qualities: proper and appropriated. The proper quality is the light of simple fire whose color causes compound candlelight, so the color of candlelight is a subalternate quality that rules the peregrine color of light in air where light causes color in the light reflected by a stone or a rose illuminated by light acting as an appropriated quality of air.

The Seventh Rule, or the Rule of "When?" signified by the letter H.
When is there candlelight? The solution to this question is signified by Rule H in the second part of the first distinction; now candlelight exists when its own being and number exist; it existed potentially in stone and iron and in a candle before it was lit. And candlelight is in successive becoming when it moves from potentiality to act and it is in corruption when it gradually consumes the wick and wax of the candle. It also exists in numeric alteration when the light that potentially existed in the wick and wax actually corrupts the flame's body by successively depriving its previous number, without this, candlelight could never move from potentiality to act.

The Eighth Rule, or Rule of "Where?" signified by I.
Where is candlelight? The solution to this question is signified by Rule I in the second part of the first distinction; now candlelight is in its own number and it is sustained in its own constituent lucificative, lucificable and their lucification; and it is in the room where it exists like the content in its container; as a body it is in substance and accident because physical bodies are composed of substance and accidents; and it is in air, like the efficient cause in its effect; and it is also in motion, and so forth.

The Ninth Rule, or Rule of "How?" signified by K
How does candlelight exist? The solution to this question is signified by Rule K in the second part of the first distinction; now candlelight has a way to be what it is and not to be what it is not; and it exists because it contains parts that exist within one another, like its form in its matter and vice versa; it also has a way of existing because of its innate mobility, like a flame whose mobility enables it to live from wax and wick, because its nutritional moisture exists.

The Tenth Rule, or Rule of "With What?" signified by K
With what does candlelight exist? The solution to this question is signified by Rule K in the second part of the first distinction; now candlelight exists with the mixture of its constituting elements, and with the concordance of fire and air in heat and of fire and earth in dryness and with the opposition of earth and air in dryness and moisture; and it exists with the concordance of air and fire in heat and of air and water in moisture and with the opposition of water and fire in cold and heat. And candlelight exists with the concordance of water and air in moisture and of water and earth in cold and with the opposition of air and earth in moisture and dryness.

Further, candlelight exists with the concordance of earth and fire in dryness and of earth and water in cold, and with the opposition of fire and water in cold and heat, which shows that the motion of candlelight is derived from and influenced by the said concordances and contrarieties existing in one and the same subject.

Further, candlelight exists with its Goodness because it is good, with its Greatness because it is great, with its Duration with which it lasts and with its Power with which it is powerful, and so forth.

We have dealt with the Rules applied to light, and this application is a general locus from which you can fully extract solutions to any questions that can be asked about light

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