41. Since this truth is counter to appearance, though, it may seem unworthy of credence unless some evidence is supplied; and since the only way to supply evidence is with the kinds of thing we perceive with our physical senses, that is what I need to draw on.

We have five external senses, called touch, taste, smell, hearing, and sight. The subject of touch is the skin that envelops us: the very substance and form of the skin make it feel what comes into contact with it. The sense of touch is not in the things that come into contact with it but in the substance and form of the skin. That is the subject, and the sense itself is simply the way it is affected by contact.

It is the same with taste. This sense is simply the way a substance and form, this time of the tongue, are affected. The tongue is the subject. It is the same with smell. We recognize that odors affect the nostrils and are in the nostrils, and that smell is the way impinging aromas affect them. It is the same with hearing. It seems as though hearing were in the place where the sound originates, but hearing is in the ear and is the way its substance and form are affected. It is only an appearance that hearing happens at a distance from the ear.

This is true of sight as well. When we see objects at a distance, it seems as though our sight were where they are. However, sight is in the eye, which is the subject; and sight is the way the eye is affected, too. Distance is simply what we infer about space on the basis of intervening objects or on the basis of reduced size and consequent loss of clarity of an object whose image is being presented within the eye according to its angle of incidence. We can see from this that sight does not go out from the eye to the object, but that an image of the object enters the eye and affects its substance and form. It is the same for both sight and hearing. Hearing does not go out of the ear to seize on the sound, but the sound enters the ear and affects it.

It stands to reason, then, that the affecting of substance and form that constitutes a sense is not something separate from the subject. It is simply the effecting of a change within the subject, with the subject remaining the subject throughout and thereafter. It then follows that sight, hearing, smell, taste, and touch are not things that go floating out from their organs. They are the organs themselves, in respect to their substance and form. Sensation happens when they are affected.

13. The Lord's Divine Nature in Heaven Is Love for Him and Thoughtfulness toward One's Neighbor

In heaven, the divine nature that emanates from the Lord is called divine truth, for reasons that will be given below. This divine truth flows into heaven from the Lord, out of his divine love. Divine love and the divine truth that derives from it are like the sun's fire and the light that comes from it in our world. The love is like the sun's fire, and the derivative truth is like the light from the sun. By reason of correspondence, fire means love and light means the truth that flows from it. ¹

This enables us to determine the character of the divine truth that emanates from divine love: in its essence, it is divine good united to divine truth, and because it is united, it gives life to everything in heaven the way the warmth of the sun, united to its light, makes everything fruitful on earth in spring and summer. It is different when the warmth is not united to light, when the light is therefore cold. Then everything slows down and lies there, snuffed out.

The divine good we have compared to warmth is the good of love within and among angels, and the divine truth we have compared to light is the means and the source of this good of love.

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