2144. 'In the oak-groves of Mamre' means the character of the perception. This is clear from the representation and meaning of 'oak-groves', and also from the representation and meaning of 'Mamre'. What oak-groves in general represented and meant has been shown in Volume One, in 1442, 1443, and what the oak-grove of Mamre specifically represented and meant, in 1616, namely perceptions, though of a human kind such as spring from factual knowledge and from the initial rational concepts derived from that knowledge.

[2] What perception is, is totally unknown at the present day, for nobody today possesses the kind of perception that the ancient and especially the most ancient people possessed. The latter knew from perception whether a thing was good and consequently whether it was true. There was an influx from the Lord by way of heaven into the rational part of their minds, and from that influx when they thought about anything holy, they perceived instantly whether a thing was so or was not so. Later on such perception with mankind perished and people began to entertain heavenly ideas no more but only worldly and bodily ones; and when this happened the place of such perception was taken by conscience (which also is a kind of perception), for acting contrary to conscience and according to conscience is nothing else than discerning from conscience whether a thing is so or not so, or whether it ought to be done.

[3] But perception that goes with conscience does not originate in inflowing good but in truth which from earliest childhood has been implanted in the rational part of the mind in accordance with the holiness of people's worship, and after that has been confirmed; for that truth alone is believed by them to be good. Consequently conscience is a kind of perception, but it has its origin in truth such as this; and when charity and innocence are introduced into it by the Lord, the good that goes with that conscience is then brought into being. These few considerations show what perception is. Yet between perception and conscience there is a wide difference. See what has been stated about perception in Volume One, in 104, 125, 371, 483, 495, 503, 521, 536, 597, 607, 784, 865, 895, 1121, 1616; about the perception spirits and angels have, in 202, 203, 1008, 1383, 1384, 1390-1392, 1394, 1397, 1504; and about the learned not knowing what perception is, in 1387.

[4] As regards the Lord when He lived in the world, all of His thought sprang from Divine perception since He alone was a Divine and Celestial Man. For He has been the only one in whom Jehovah Himself was present and from whom His perception came, also dealt with in Volume One, in 1616, 1791. His perceptions became more and more interior the closer He came to union with Jehovah. The nature of His perception at this time becomes clear from what has been stated in Volume One, in 1616, about the oak-groves of Mamre; and then the nature of it when He perceived the things contained in this chapter is described in what follows below.

865. That 'he sent out a raven, and it went out going back and forth' means that falsities were still giving trouble is clear from the meaning of 'a raven' and from the meaning of 'going back and forth', dealt with in the paragraphs following this. Here the description is of the second state following temptation of the person who is to be regenerated, when the truths of faith start to appear as a first glimmer of light. This is the kind of state in which falsities are continually giving trouble. It is a state resembling the morning twilight when the obscurity of the night is still lingering on. That state is therefore meant here by 'the raven'. The falsities residing with a spiritual man, especially before he has been regenerated, are as thick patches of cloud, the reason being that he is incapable of knowing any truth of faith except from things that have been revealed in the Word where all things are stated in a general way. General statements there are nothing else than patches of cloud, for any one general statement embraces thousands of details, and each detail thousands of finer points. Those finer points constituting details are what light up the general statements. These have never been so revealed to mankind because they are both indescribable and also in-comprehensible, and so can neither be acknowledged nor believed. In fact they are contrary to the illusions of the senses which govern man, and to whose destruction he does not readily consent.

[2] The case is altogether different with the celestial man, who has perception from the Lord. In him details and their finer points can be implanted. Take, for example, the consideration that true marriage is a marriage of one man and one wife; and that such a marriage is representative of the heavenly marriage, and as a consequence can contain heavenly happiness, something that is not possible when one man has several wives. The spiritual man, who knows of this from the Word of the Lord, gives his assent to it and so acquires a conscience which dictates that being married to several wives is a sin. Beyond this his knowledge does not go. The celestial man however perceives thousands of details which so confirm the point that the thought of marriage to several makes him shudder. When the spiritual man's knowledge amounts to simply a general view of things, and his conscience is formed from that general view, and when the general statements of the Word are adapted to the illusions of the senses, it is clear that countless falsities which cannot be dispersed will attach themselves and worm their way in. These falsities are meant here by 'the raven that went out going back and forth'.