9879. 'And you shall make on the breastplate small chains on the border' means all heaven joined together in the most external parts. This is clear from the meaning of 'the breastplate' as Divine Truth emanating from the Lord's Divine Good, dealt with in 9823, thus also heaven, dealt with below; from the meaning of 'small chains' as coherence, dealt with above in 9852, thus also a joining together; and from the meaning of 'the border' as the most external part, as also above in 9853. The reason why 'the breastplate' means heaven as well is that all the kinds of good and truth in their entirety were represented there by the twelve stones and by the names of the twelve tribes; and those kinds of good and truth in their entirety constitute heaven, so completely that whether you say heaven or those kinds of good and truth it amounts to the same thing. For the angels who constitute heaven are recipients of good and truth from the Lord, and being recipients of these they are also forms of them, or forms of love and charity. Truths of faith make for beauty, but a beauty in keeping with truths that spring from good, that is, in keeping with truths through which good shines forth. Outward forms of love and charity, which is what the forms of angels in the heavens are, are human forms; they are such because the kinds of good and the truths which emanate from the Lord, and the angels are recipients of, are effigies and images of the Lord.

9823. 'A breastplate' means Divine Truth shining forth from Divine Good. This is clear from the meaning of 'a breastplate' as Divine Truth shining forth from Divine Good, in this instance within the last and lowest things in progression from inmost ones in the heavens. For the ephod which that breastplate rested on represented the lowest things of the spiritual kingdom, and therefore the lowest things of heaven. The reason why 'the breastplate' has this meaning is that it was tied on over the breast, where the heart lies, and was filled with precious stones, and the heart corresponds to celestial good, which is the good of love to the Lord received from the Lord, while the twelve precious stones correspond to Divine Truths springing from that good. This is the reason why in the highest sense 'the breastplate' means Divine Truth shining forth from the Lord's Divine Good. For the correspondence of the heart to celestial good, or the good of love to the Lord received from the Lord, see 170, 172, 176, 3635, 3883-3896, 7542, 9050, 9300, 9494; and for the correspondence of the twelve precious stones to Divine Truths which spring from Divine Good, see further on in the present chapter where the full description of this breastplate occurs. There it is called 'the breastplate of judgement', also the Urim and Thummim, because of the twelve precious stones with which it was filled. The fact that it was tied on over the breast, where the heart lies, is evident from the description of it below, where that fact is stated explicitly in these words,

Aaron shall carry the names of the sons of Israel in the breastplate of judgement over his heart. Verse 29.

And after this,

They shall be over Aaron's heart, when he goes in before Jehovah. And Aaron shall carry the judgement of the children of Israel over his heart before Jehovah continually. Verse 30.

'Judgement' too means Divine Truth emanating from the Lord's Divine Good, as will be seen in what follows.