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.

1420. 'You will be a blessing' means that every single thing comes from the Lord. This becomes clear from the meaning of 'a blessing'. Blessing has reference to every form of good - in the external sense to bodily, worldly, and natural forms, in the internal sense to spiritual and celestial forms. 'Being a blessing' means the Source of every form of good and the Giver of this, an attribution that cannot possibly be made to Abram. From this it is also clear that 'Abram' represents the Lord, who alone is a Blessing. So also with the attributions made to Abraham further on, such as,

Abraham will surely become a great and numerous nation, and in him all the nations of the earth will be blessed. Genesis 18:18.

Concerning Isaac,

In your seed will all the nations of the earth be blessed. Genesis 26:4.

And concerning Jacob,

In you all the families of the earth will be blessed, and in your seed. Genesis 28:14.

That nations are not able to be blessed, nor were they blessed, in Abraham, Isaac, and Jacob, and in their seed, but that they were blessed in the Lord, may become clear to anyone. This is clearly stated in David,

His name will be for ever, before the sun His son's name; and all nations will be blessed in Him Psalms 72:17.

This refers to the Lord. In the same author,

You set Him to be blessings for ever. Psalms 21:6.

This also refers to the Lord. In Jeremiah,

In Him the nations will be blessed, and in Him will they glory. Jeremiah 4:2.

From these places it is now clear that 'a blessing' means the Lord, and when He is called a Blessing that it means that from Him come all celestial and spiritual things which alone are goods. And because they alone are goods they alone are truths as well. To the extent therefore that celestial and spiritual forms of good are present in natural, worldly, and bodily forms, the latter are good and are blessed.