9726. 'And you shall make for it a grating, a network' means the level of sensory perception, which is the last and lowest. This is clear from the meaning of 'a grating, a network' as external sensory perception, thus that which forms for a person the last and lowest level of life; and since this lowest level is meant by the grating it was placed all the way round the altar. Such sensory perception was represented by the grating because it first sifts so to speak and sorts out those things which enter the human mind and present themselves to the understanding and will, namely truths and forms of good. If the sensory perception is composed of good it does not let anything through other than forms of good, and truths derived from good, and rejects evils and the falsities arising from evil. For sensory perception is the actual ability to perceive things which belong to the understanding and to sense those which belong to the will as they exist on outermost levels, an ability that is perfectly fashioned for the affections for those things. The nature of all this may be illustrated by very many things in the body. Everywhere in the outermost parts within the body there are forms that resemble nets and there are so to speak gratings which sort out the things that flow towards them from the world. Those that are suitable are let through because they are desirable, and those that are unsuitable are rejected because they are loathsome. Extremely sensitive systems such as these exist in the stomach. These let through into the blood the suitable juices of the chyle, because these juices are useful and therefore desirable, and reject the unsuitable because they are harmful and therefore loathsome. The situation is similar with sensory perception, which is the last and lowest level of a person's life. But this level with a person has become totally wrecked, the reason why being that it stands right next to and is exposed to the world and is therefore the last to be regenerated, indeed scarcely anyone at the present day is able to be regenerated down to that level. As regards what the level of sensory perception is like with these people, see what has been shown already concerning it in 4009, 5077, 5081, 5084, 5094, 5125, 5128, 5580, 5767, 5774, 6183, 6201, 6310-6318, 6564, 6598, 6612, 6614, 6622, 6624, 6844, 6845, 6948, 6949, 7442, 7645, 7693, 9212, 9216.

Therefore if a person is to see and have an understanding of the truths of faith and the forms of the good of love he must be raised by the Lord above that level to more internal levels. But the sensory perception meant by 'the grating, the network' around the altar is the sensory perception belonging to the Lord's Divine Human, since the altar is representative of the Lord and of the worship of Him that springs from the good of love, 9714.

4280. In that lower sense the words 'he touched the hollow of Jacob's thigh' mean where conjugial love is joined to natural good. This is clear from the meaning of 'the hollow of the thigh' as the place where conjugial love is linked to it, see above in 4277. The reason why the place where it is linked to natural good is meant is that it is the place where the thigh is joined to the feet. 'The feet' in the internal sense means natural good, see 2162, 3147, 3761, 3986.

[2] As regards 'the thigh' meaning conjugial love and 'the feet' natural good, that is one of those realities known in the past which have grown old and died. The Ancient Church, which existed in an age of representatives and meaningful signs, was extremely well acquainted with these meanings, such knowledge of them constituting their intelligence and wisdom. Indeed it constituted the intelligence and wisdom not only of those who belonged to the Church but also of those outside the Church, as becomes clear from the oldest books written by gentiles and from the stories in them which are nowadays called myths - for meaningful signs and representatives spread from the Ancient Church to those gentiles. With these also 'the thighs and loins' meant that which belonged to marriage, and 'the feet' things that were natural. The origin of this meaning of 'the thighs and the feet' lies in the correspondences of all the members, organs, and viscera of the human being with the Grand Man, which - that is to say, such correspondences - are being dealt with now at the ends of chapters. The correspondences with the thigh and the feet will be discussed again further on, where actual experience will be used to corroborate that their meaning is as indicated above.

[3] These things are bound to seem like enigmas at the present day because, as has been stated, that knowledge has grown very old indeed and died. Yet how far that knowledge excels other types of knowledge becomes clear from the consideration that the internal sense of the Word cannot possibly be known without that knowledge, as well as for the reason that the angels present with man perceive the Word according to that sense. It becomes clear also from the consideration that by means of that knowledge man is provided with communication with heaven. And what is unbelievable, the internal man himself does not think in any other way; for when the external man understands the Word according to the letter the internal man does so according to the internal sense, though while living in the body a person is not at all conscious of doing so. This becomes particularly clear from the fact that when anyone enters the next life and becomes an angel he has no need to learn the internal sense but knows it instinctively, so to speak.

[4] What conjugial love is which is meant by 'the thighs' and also by 'the loins', see 995, 1123, 2727-2759; and conjugial love is the basic love of all loves, 686, 3021. Consequently people who have genuine conjugial love in them also have celestial love, which is love to the Lord, and spiritual love, which is charity towards the neighbour. For this reason the expression 'conjugial love' is used to mean not only that love itself but also all celestial and spiritual love. These kinds of love are said to be joined to natural good when the internal man is joined to the external, that is, the spiritual man to the natural - that joining together of them being meant by 'the hollow of the thigh'. The fact that with Jacob and his descendants in general no such conjunction existed will be evident from what follows, for this is the subject dealt with here in the internal historical sense.