In the Christmas story, the wise men bring gifts to the Lord: gold, frankincense and myrrh.

The gold is listed first, because it is the inmost - signifying good, e.g. the good that we do when we love the Lord and the neighbor.

The frankincense is next. It signifies rational truth, which is the set of true ideas that we know, not about external things like cars or cooking, but about what is really good, and what is really true.

These rational truths are built on earlier knowledges that we learn, before we have really made them our own. Those early knowledges about spiritual things - often learned in childhood - are represented by the myrrh.

In a way, these gifts are really a reciprocation. We can't actually give them to the Lord until the Lord has given them to us. We necessarily start out by learning and doing the Lord's law (myrrh). The Lord can then call up those memories to become rational truths (frankincense). Then, over time, and with effort, those truths can be transformed into good (gold). The wise men from the East had gone through this process of learning and becoming vessels that could receive truths and goods. They were able to perceive the Lord's birth, and find him, and bring gifts to him.

258. In the Word there is a spiritual sense, which is called the internal sense.

No one can know what the internal sense of the Word is, unless he knows what correspondence is (n. 2895, 4322). The whole and every part, even to the most minute, of the natural world, corresponds to spiritual things, and thence is significative of them (n. 1886-1889, 2987-3003, 3213-3227). The spiritual things to which natural things correspond assume another appearance in the natural, so that they are not distinguished (n. 1887, 2395, 8920). Scarcely anyone knows at this day, where, or in what part is the Divine of the Word, when nevertheless it is in its internal or spiritual sense, which at this day is not known (n. 2899, 4989). The mystic things of the Word are nothing else than what its internal or spiritual sense contains, which treats of the Lord, of His kingdom, and of the church, and not of the natural things which are in the world (n. 4923). The prophetic parts of the Word are in many places unintelligible, and therefore of no use without the internal sense; illustrated by examples (n. 2608, 8020, 8398). As what is signified by "the white horse," mentioned in Revelation (n. 2760[1-2].). By "the keys of the kingdom of the heavens" that were given to Peter, see the Preface to the 22 nd (Arcana Coelestia 9410) chapter of Genesis (n. 9410). By "the flesh," "blood," "bread," and "wine," in the Holy Supper, and thus why it was instituted by the Lord (n. 8682). By the prophecies of Jacob concerning his sons in the 49th chapter of Genesis (n. 6306, 6333-6465). By many prophecies concerning Judah and Israel, which by no means tally with that people, nor in the literal sense have any coincidence with their history (n. 6333, 6361, 6415, 6438, 6444). Besides innumerable other instances (n. 2608).

Of the spiritual or internal sense of the Word in a summary (n. 1767-1777, 1869-1879). There is an internal sense in the whole and in every particular part of the Word (n. 1143, 1984, 2135, 2333, 2395, 2495, 2619). Such things do not appear in the sense of the letter, but nevertheless they are contained within it (n. 4442).