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.

272. There is still another reason, beyond the ones already given, why angels can accept so much wisdom, a reason that in heaven is actually the primary one. It is that they are free of any selfishness; for to the extent that people are free of selfishness they can be wise in divine matters. Selfishness is what closes off our deeper natures from the Lord and heaven and opens our outer natures and turns them toward ourselves. So all people in whom that selfish love predominates are in the depths of darkness as far as heavenly realities are concerned, no matter how much light they may enjoy in regard to worldly matters. In contrast, since angels are free of that love, they enjoy the light of wisdom. The heavenly loves in which they are centered - love for the Lord and love for their neighbor - open the deeper levels because these loves come from the Lord and the Lord himself is within them. (These loves constitute heaven in general and form heaven in individuals in particular: 13-19.)

Since heavenly loves open our deeper levels toward the Lord, all the angels turn their faces toward the Lord (142): in the spiritual world love is what turns the deeper levels of every individual toward itself, and what turns the deeper levels turns the face, since the face there acts in unison with the deeper levels and is actually their outward form. Further, because love does turn the deeper levels and the face toward itself, it also unites itself to them, since love is spiritual union. Therefore it also shares what it has with them. It is from this turning and the consequent union and sharing that angels get their wisdom (all union in the spiritual world takes place according to the way people are facing, 255).