1. The Interaction of the Soul and Body

There are three opinions and traditions, which are hypotheses, concerning the Interaction of the Soul and Body, or the operation of the one upon the other, and of the one together with the other: the first is called Physical Influx, the second Spiritual Influx, and the third Pre-established Harmony.

The first, which is called physical influx, arises from the appearances of the senses, and the fallacies thence derived. For it appears as if the objects of sight, which affect the eyes, flow into the thought and produce it; in like manner speech, which affects the ears, appears to flow into the mind, and to produce ideas there; and it is similar with respect to the senses of smell, taste, and touch. Since the organs of these senses first receive the impressions that flow into them from the world, and the mind appears to think, and also to will, according as these organs are affected, therefore, the ancient philosophers and Schoolmen believed that influx was derived from them into the soul, and hence adopted the hypothesis of Physical or Natural Influx.

[2] The second hypothesis, which is called spiritual, and by some occasional influx, originates in order and its laws. For the soul is a spiritual substance, and therefore purer, prior, and interior; but the body is material, and therefore grosser, posterior, and exterior; and it is according to order that the purer should flow into the grosser, the prior into the posterior, and the interior into the exterior, thus what is spiritual into what is material, and not the contrary. Consequently, it is according to order for the thinking mind to flow into the sight according to the state induced on the eyes by the objects before them, which state that mind also disposes at its pleasure; and likewise for the perceptive mind to flow into the hearing, according to the state induced upon the ears by speech.

[3] The third hypothesis, which is called pre-established harmony, arises from the appearances and fallacies of the reasoning faculty; since the mind, in the very act of operating, acts together with and at the same time as the body. Still, every operation is first successive and afterwards simultaneous, and successive operation is Influx, and simultaneous operation is Harmony; as, for instance, when the mind thinks and afterwards speaks, or when it wills and afterwards acts: hence it is a fallacy of the reasoning faculty to establish that which is simultaneous, and to exclude that which is successive.

No fourth opinion concerning the Interaction of the Soul and the Body can be framed in addition to these three; for either the soul must operate upon the body, or the body upon the soul, or both uninterruptedly at the same time.

16. XIV. There are three degrees in the spiritual world, and three degrees in the natural world, hitherto unknown, according to which all influx takes place.

It is discovered by the investigation of causes from effects that there are two kinds of degrees: one in which things are prior and posterior, and another in which they are greater and less. The degrees which distinguish things prior and posterior are to be called DEGREES OF ALTITUDE, or DISCRETE DEGREES; but the degrees by which things greater and less are distinguished from each other are to be called DEGREES OF LATITUDE, and also CONTINUOUS DEGREES.

[2] Degrees of altitude, or discrete degrees, are like the generations and compositions of one thing from another; as for example, of some nerve from its fibres, and of any fibre from its fibrils; or of some piece of wood, stone, or metal from its parts, and of any part from its particles. But degrees of latitude, or continuous degrees, are like the increases and decreases of the same degree of altitude with respect to breadth, length, height and depth; as of greater and less volumes of water, air, or ether; and as of large and small masses of wood, stone, or metal.

[3] All things in general and in particular in both worlds, the spiritual and the natural, are by creation in degrees of this double kind. The whole animal kingdom in this world is in those degrees, both in general and in particular; so likewise are the whole vegetable kingdom and the whole mineral kingdom; and also the atmospheric expanse from the sun even to the earth.

[4] There are, therefore, three atmospheres, discretely distinct according to the degrees of altitude, both in the spiritual and in the natural world, because each world has a sun; but the atmospheres of the spiritual world, by virtue of their origin, are substantial, and the atmospheres of the natural world, by virtue of their origin, are material. Moreover, since the atmospheres descend from their origins according to those degrees, and are the containants of light and heat, and as it were the vehicles by which they are conveyed, it follows that there are three degrees of light and heat; and since the light in the spiritual world is in its essence wisdom, and the heat there in its essence is love, as was shown above in its proper article, it follows also that there are three degrees of wisdom and three degrees of love, consequently three degrees of life; for they are graduated by those things through which they pass.

[5] Hence it is that there are three angelic heavens: a supreme, which is also called the third heaven, inhabited by angels of the supreme degree; a middle, which is also called the second heaven, inhabited by angels of the middle degree; and a lowest, which is also called the first heaven, inhabited by angels of the lowest degree. Those heavens are also distinguished according to the degrees of wisdom and love: those who are in the lowest heaven are in the love of knowing truths and goods; those in the middle heaven are in the love of understanding them; and those in the supreme heaven are in the love of being wise, that is, of living according to those truths and goods which they know and understand.

[6] As the angelic heavens are distinguished into three degrees, so also is the human mind, because the human mind is an image of heaven, that is, it is heaven in its least form. Hence it is that a man can become an angel of one of those three heavens; and he becomes such according to his reception of wisdom and love from the Lord: an angel of the lowest heaven if he only receives the love of knowing truths and goods; an angel of the middle heaven if he receives the love of understanding them; and an angel of the supreme heaven if he receives the love of being wise, that is, of living according to them. That the human mind is distinguished into three regions, according to the three heavens, may be seen in the memorable relation inserted in the work on Conjugial Love 270. Hence it is evident that all spiritual influx to a man and into a man from the Lord descends through these three degrees, and that it is received by the man according to the degree of wisdom and love in which he is.

[7] A knowledge of these degrees is, at the present day, of the greatest value: for many persons, in consequence of not knowing them, remain in and cling to the lowest degree, in which are the senses of their body; and from their ignorance, which is a thick darkness of the understanding, they cannot be raised into spiritual light, which is above them. Hence naturalism takes possession of them, as it were spontaneously, as soon as they attempt to enter on any enquiry and examination concerning the soul and the human mind and its rationality; and still more if they extend their inquiries to heaven and the life after death. Hence they become like persons standing in the market-places with telescopes in their hands, looking at the sky and uttering vain predictions; and also like persons who chatter and reason about every object they see and everything they hear, without anything rational from the understanding being contained in their remarks; but they are like butchers, who believe themselves to be skilful anatomists, because they have examined the viscera of oxen and sheep outwardly, but not inwardly.

[8] The truth, however, is, that to think from the influx of natural light [lumen] not enlightened by the influx of spiritual light is merely to dream, and to speak from such thought is to make vain assertions like fortune-tellers. But further particulars concerning degrees may be seen in the work on The Divine Love and Wisdom 173-281.

4. -II-. The spiritual world first existed and continually subsists from its own sun; and the natural world from its own sun.

That there is one sun of the spiritual world and another of the natural world is because those worlds are altogether distinct from each other, and a world derives its origin from a sun. For a world in which all things are spiritual cannot originate from a sun, all the products of which are natural, since thus there would be physical influx, which, however, is contrary to order. That the world came into existence from the sun, and not the sun from the world, is evident from the consequence of the fact that the world, as to all things belonging to it, in general and in particular, subsists by means of the sun; and subsistence proves existence, hence it is said that subsistence is perpetual existence: thus it is evident that if the sun were removed its world would fall into chaos, and this chaos into nothing.

[2] That in the spiritual world there is a sun different from that in the natural world I am able to testify, for I have seen it: in appearance it is fiery, like our sun, of nearly the same magnitude, and at a distance from the angels as our sun is from men. It does not rise or set, however, but stands immovable in a middle altitude between the zenith and the horizon, whence the angels enjoy perpetual light and perpetual spring.

[3] A man given to reasoning, who knows nothing concerning the sun of the spiritual world, easily becomes insane in his idea of the creation of the universe. When he deeply considers it, he perceives no otherwise than that it is from nature; and because the origin of nature is the sun, that it is from its sun as a creator. Moreover, no one can have a perception of spiritual influx, unless he also knows its origin: for all influx proceeds from a sun; spiritual influx from its sun, and natural influx from its sun. The internal sight of a man, which is the sight of his mind, receives influx from the spiritual sun; but the external sight, which is that of the body, receives influx from the natural sun, and in operation they unite, just as the soul does with the body.

[4] Hence it is evident into what blindness, darkness, and stupidity those may fall who know nothing of the spiritual world and its sun; into blindness, because the mind, depending solely upon the sight of the eye, becomes in its reasonings like a bat, which flies by night in a wandering course, and sometimes into linen clothes which may be hanging up; into darkness, because the sight of the mind, when the sight of the eye is flowing into it from within, is deprived of all spiritual light [lumen], and becomes like that of an owl; into stupidity, because the man still thinks, but from natural things about spiritual, and not the other way round; consequently, idiotically, foolishly, and insanely.