9051. 'Eye for eye' means if anything is injured by them in the inner part of the understanding. This is clear from the meaning of 'the eye' as the understanding, in this instance the inner part of it, the life of which is the life of faith. A person's understanding has an outer part and an inner part The outer part of his understanding is where thought that enters his awareness is, whereas the inner part is where thought that does not enter his awareness is, though it enters that of the angels. This part of the understanding is what the Lord enlightens when a person receives faith, for it exists in the light of heaven and holds within it a person's spiritual life. This is not made plainly evident to the person while in the world, but it is made so to that person in the next life when he becomes an angel among angels in heaven. In the meanwhile that life lies hidden within the thought belonging to the outer part of the understanding, producing there the holiness and reverence for the Lord, for love and faith in Him, for the Word, and for everything else that is the Church's. The reason why 'the eye' means the understanding is that the eye corresponds to the understanding; for the understanding sees in the light of heaven, but the eye sees in the light of the world. The things that the former eye, that is, the understanding, sees are spiritual, and its field of vision is the factual knowledge contained in the person's memory. But the things which the physical eye sees are earthly, and its field of vision consists in every object that appears in the world. Regarding 'the eye', that in the spiritual sense it means the understanding, and also faith since faith composes the life of the inner part of the understanding, see 2701, 4403-4421, 4523-4534.

[2] Anyone who does not know that 'the eye' is used in the Word to mean the understanding cannot know what the meaning is of the things which the Lord spoke concerning the eye in the Gospels, first of all these,

If your right eye causes you to stumble, pluck it out. It is better for you to enter the kingdom of God with one eye, than having two eyes, to be cast into the Gehenna of fire. Matthew 5:29; Mark 9:47.

Everyone recognizes that the eye should not be plucked out even if it does cause a person to stumble, and that no one enters the kingdom of God with only one eye. But 'the right eye' means falsity in a person's belief about the Lord; this is what must be plucked out. Then there are these things spoken by the Lord,

The lamp of the body is the eye. If therefore your eye is sound, your whole body will be full of light. If your eye is evil your whole body will be full of darkness. If therefore the light that is in you is darkness, how great is the darkness! Matthew 6:22-23; Luke 11:34.

Nor is 'the eye' used here to mean the eye, but an understanding composed of the truth of faith. This is why the eye is called 'the lamp of the body' and why the Lord says, 'If the light that is in you is darkness, how great is the darkness!' For 'darkness' in the spiritual sense is falsities constituting faith, 1839, 1860, 4418, 4531, 7688, 7711.

[3] There are these words too spoken by Him,

Why do you notice the speck which is in your brother's eye, but do not consider the plank that is in your own eye? Matthew 7:3-5.

'Noticing a speck in a brother's eye' means seeing something erroneous in a person's understanding of truth; 'the plank in one's own eye' is huge evil of falsity, since 'wood' in the internal sense means good and in the contrary sense evil, 643, 2784, 2812, 3720, 8354. Good is also represented in the next life by a plank, which is why those who pretend to have good within themselves are seen carrying a plank, walking in safety as they do so. If 'eye' and 'plank' did not have these meanings, would 'seeing a plank in an eye' have any meaning at all? If it is not known that 'eye' in the Word means the understanding of truth, which is faith, neither can it be known what is implied by the Lord's action when He healed the blind man,

He spat on the ground and made clay with His saliva, and said to him, Go, wash in the pool of Siloam. John 9:6-7.

Since all the Lord's miracles, like all Divine miracles, had to do with those things that belong to the Lord's kingdom and the Church, 7337, 8364, so did this miracle too.

7688. 'And the land was darkened' means that falsity was introduced where there had been truth. This is clear from the meaning of 'darkness' as falsities, dealt with in 1839, 1860, 4418, 4531, so that 'being darkened' is being subject to falsity. And since the vastation of those who belonged to the Church, had a knowledge of truths, but led an evil life, are the subject 'the land was darkened' means falsity where there has been truth. Truth is meant in the internal sense by 'light', and therefore falsity is meant by 'darkness'; for truth and falsity are opposites like light and darkness. And those guided by truth dwell in actual light, whereas those under the influence of falsity dwell in actual darkness. The inferior light which those under the influence of falsity in the next life dwell in turns into thick darkness at the presence of the superior light of heaven, and into even thicker darkness with those who have belonged to the Church, because their falsity has stood in opposition to the truth of faith, as accords with the Lord's words in Matthew,

If the light that is in you is darkness, how great is the darkness! Matthew 6:23.

And in the same gospel,

The sons of the kingdom will be thrown into outer darkness. Matthew 8:12.

'The sons of the kingdom' are members of the Church, and 'outer darkness' is more serious falsities, the term 'outer' being used because falsities in the outermost parts are more serious ones.

[2] The fact that falsities are called 'darkness' is clear from a number of places in the Word, for example in John,

Light has come into the world, but men preferred darkness rather than light, for their works were evil. John 3:19.

In the same gospel,

Walk, as long as you have the light, lest darkness overtakes you. I have come as light into the world in order that all who believe in Me may not remain in darkness. John 12:35, 46.

In Isaiah,

Woe to those who speak of evil as good, and of good as evil, who put darkness for light, and light for darkness! Isaiah 5:20.

In Jeremiah,

Give glory to Jehovah your God before He brings darkness and before your feet stumble on the twilight mountains; then you will look for light but He will turn it into the shadow of death, He will place it in thick darkness. Jeremiah 13:16.

In Ezekiel,

When I have blotted you out, I will cover the heavens and darken their stars. I will cover the sun with a cloud, and the moon will not give its light. All the bright lights in the heavens I will make dark over you, and I will put darkness over your land. Ezekiel 32:7-8.

In Joel,

The day of Jehovah is coming, it is near, a day of darkness and thick darkness, a day of cloud and gloom. Joel 2:1-2; Amos 5:18, 20.

In Zephaniah,

A day of wrath is that day, a day of ruin and devastation, a day of darkness and thick darkness. Zephaniah 1:15.

In these places 'darkness' means falsities. In addition 'darkness' in the Word means lack of knowledge of the truth, such as exists with gentiles who do not have the Word and know nothing about the Lord.