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.

2701. 'God opened her eyes' means intelligence. This is clear from the meaning of 'opening' - and that it is God who did so - and also from [the meaning] of 'the eyes', as conferring intelligence; for 'the eyes' means the understanding, see 212, as also does 'sight' or 'seeing', 2150, 2325. The expression 'God opens the eyes' is used when He opens interior sight or the understanding, which opening is accomplished by means of an influx into the rational part of the person's mind, or rather into the spiritual part of his rational. The route taken by this influx is the soul, that is, the internal route, of which the person himself is not aware. This influx is his state of enlightenment in which the truths he hears or reads about are confirmed for him by a kind of perception existing within, in the understanding part of his mind. The person himself believes that this enlightenment is innate within himself and that it springs from his own power of understanding; but in this he is very much mistaken. This enlightenment consists in an influx from the Lord by way of heaven into that person's dim, mistaken, and specious sight of things, and by means of the good there causes the things which he believes to become imitations of truth. Only those who are spiritual however are blessed with enlightenment in spiritual matters of faith; and this is the meaning of the expression 'God opens the eyes'.

[2] The reason why 'the eye' means the understanding is that the sight belonging to the body corresponds to that belonging to its spirit, which is the understanding. And because it has this correspondence 'the eye' in the Word, in almost every place where it is mentioned, means the understanding, even where people believe something other is meant, as where the Lord says in Matthew,

The lamp of the body is the eye. If the eye is sound, the whole body is full of light. If the eye has been evil the whole body has been made full of darkness. If therefore the light is darkness, how great is the darkness! Matthew 6:22-23; Luke 11:34.

Here 'the eye' is the understanding, the spiritual constituent of which is faith, as also is shown by the explanation added here - 'if therefore the light is darkness, how great is the darkness!' Similarly in the same gospel,

If your right eye causes you to stumble, pluck it out and throw it away from you. Matthew 5:29; 18:9.

'The left eye' is the understanding part of the mind, whereas 'the right eye' is its affection. The command to pluck out the right eye means that if it causes one to stumble one's affection must be disciplined.

[3] In the same gospel,

Blessed are your eyes, for they see, and your ears, for they hear. Matthew 13:16.

And in Luke, Jesus said to the disciples, Blessed are the eyes which see what you see. Luke 10:23.

Here 'the eyes which see' means intelligence and faith, for it was not the mere fact that they saw the Lord and also His miracles and works that caused any one of the disciples to be blessed but the fact that they could grasp things with their understandings and had faith, meant by 'seeing with the eyes', and that they were obedient, meant by 'hearing with the ears'. As regards 'seeing with the eyes' meaning to see with the understanding and also to have faith, see 897, 2325. For the understanding is the spiritual complement of sight, and faith the spiritual complement of the understanding. The sight of the eye is received from the light of the world, the sight of the understanding from the light of heaven flowing into things which belong to the light of the world; but the sight of faith is received from the light of heaven. This is the origin of such phrases as seeing with the understanding and seeing with faith. 'Hearing with the ear' means being obedient, see 2542.

[4] In Mark,

Jesus said to the disciples, Do you not yet know nor understand? Do you still have your heart hardened? Having eyes do you not see, and having ears do you not hear? Mark 8:17-18.

Here it is evident that 'having eyes but not seeing' means not wishing to understand and not believing. In Luke,

Jesus said of the city, Would that you knew the things that make for your peace! But such is hidden from your eyes. Luke 19:41-42.

And in Mark,

By the Lord has this been done, and it is marvellous in our eyes. Mark 12:11.

Here 'hidden from the eyes' and 'marvellous in the eyes' mean to be so to the understanding, as is well known to everyone from the meaning of 'the eyes' even in everyday speech.