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.

215. The proprium is nothing but evil and falsity. This has been made clear to me from the fact that anything spirits at any time have spoken from themselves has been evil and false, and so much so that the moment I was made to realize that it originated in themselves I knew it was false, even though, when they spoke, they were so sure of its being the truth that they were in no doubt about it. The same is true of the person who speaks from himself. Similarly whenever people have started to reason about the things which constituted spiritual and celestial life or about those which comprised faith, I have been allowed to perceive that they doubted, indeed denied, those things; for reasoning about faith amounts to doubting and denying. And because they reason from themselves, that is, from the proprium, they plunge into utter falsities, and therefore into abysmal thick darkness, that is, thick darkness of falsities. At such times the tiniest quibble weighs more heavily than a thousand truths, just as a speck of dust deposited on the pupil of the eye prevents it from seeing the universe and everything it contains. The Lord speaks of these people in Isaiah as follows,

Woe to those who are wise in their own eyes, and in their own sight are intelligent! Isaiah 5:21

And in the same prophet,

Your wisdom and your knowledge led you astray, and you said in your heart, I am, and there is no one else besides me. And evil will come upon you, whose origin you do not know, and disaster will befall you, which you will not be able to expiate, and vastation will come upon you suddenly of which you know not. Isaiah 47:10-11.

In Jeremiah,

Every man has been made stupid by knowledge; every metal-caster is put to shame by his statue, for the idol he moulds is a lie, and there is no spirit in those things. Jeremiah 51:17.

'Statue' stands for the falsity which belongs to the proprium, and 'idol' for the evil which belongs to it.