9931. 'And engrave on it, [like] the engraving of a signet' means what is everlasting and has been imprinted on their hearts in accord with a heavenly sphere. This is clear from the meaning of 'engraving' as imprinting on the memory, 9841, 9842, thus also on the heart (for what is imprinted on the interior memory, or on one's life, is said to have been imprinted on the heart), and since this remains forever, what exists everlastingly is also meant; and from the meaning of 'the engraving of a signet' as a heavenly sphere, dealt with in 9846. The expression 'what has been imprinted on their hearts in accord with a heavenly sphere' is used because things which have been imprinted on the memory - in particular on the interior memory, which is 'the book of life', 2474 - have been imprinted in accord with a heavenly sphere. For a person governed by the good of love resulting from the truths of faith resembles heaven, indeed he is heaven in the smallest form it takes, see the places referred to above in 9279, 9632. This being so, the heavenly pattern resides in him; for all the communities in heaven have been arranged according to the heavenly pattern, because all affections for good and consequently thoughts of truth flow in accordance with that pattern, 9877. All factual knowledge too is arranged into the heavenly pattern when a person is governed by heavenly love, love being that which so arranges it, see 6690.

114. The truth of faith was also meant and represented in the Word precious stones, for example, those in the breast plate of judgement, and upon the shoulder-pieces of Aaron's ephod. in the breastplate, the gold, blue, purple, double-dyed scarlet, and fine-twined linen represented matters of love, while the precious stones represented matters of faith deriving from love, as did the two stones of remembrance on the shoulder-pieces of the ephod which were made from shoham encompassed with settings of gold, Exodus 28:9-22. The same point, that the truth of faith is meant and represented by precious stones, is plainly stated in Ezekiel when the subject is the person who possesses the heavenly riches of wisdom and intelligence,

Full of wisdom and perfect in beauty, you were in Eden, the garden of God. Every precious stone was your covering ruby, topaz, diamond, tarshish, shoham, and jasper, sapphire, chrysoprase, and emerald. And gold, the work of your drums and of your pipes, was within you. On the day that you were created they were prepared. You were perfect in your ways from the day you were created. Ezekiel 28:12-13, 15.

Anyone may see that celestial and spiritual things of faith, and not just stones, are meant. Indeed each stone represented a particular essential element of faith.