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.

6845. 'For the place which you are standing on is holy ground' means that otherwise the Divine cannot come in. This is clear from the meaning of 'place' as a state, dealt with in 2625, 2837, 3356, 3387, 4321, 4882, 5605, and therefore 'the place which you are standing on' is the state in which he is up to this point; and from the meaning of 'holy ground' as the holiness which goes forth from the Lord. Thus a state of the holy influence from the Lord's Divine Human is what these words are used to mean. This meaning - that otherwise the Divine cannot come in - follows from what is said immediately before, namely that if a person were not removed from the powers of the senses, which form the external levels of the natural, that is, if he were not raised from them to more internal levels, the Divine could not flow in. The reason why the Divine cannot flow in as long as the person's thought remains on the level of the senses is that influx from the Divine extends right through to things that are last in order, thus right through to the powers of the senses which form the external levels of a person's natural. If those levels consist solely of bodily and earthly interests the Divine influences coming in are reduced to nothing since they are incompatible with what is there. Consequently when a person is about to receive the Divine, that is, matters of faith and love, he is raised from the powers of the senses; and once he has been raised from them, the Divine no longer flows in there, into the external level of the senses, but into the more internal level to which the person has been raised. I have been allowed to know from a considerable amount of experience that this is so.