20. Anyone who has learned about God's order can also understand that man was created so as to become an angel, because in him order reaches its ultimate stage (see 9 above). In this stage something of the wisdom of heaven and the angels can be formed, and it can be reconstituted and multiplied. God's order never stops half-way, and forms anything there without the ultimate stage; for it is not in its fullness and perfection unless it goes to the ultimate. But when it is there, then it takes shape and uses the means at its disposal there to reconstitute and extend itself, which it does by reproduction. The ultimate is therefore the seed-bed of heaven.

This too is what is meant by the description of man and his creation in the first chapter of Genesis:

God said, Let us make ¹ man in our image, according to our likeness. And God created man in His image, in the image of God did He create him. Male and female He created them; and God blessed them, and God said to them, Be fruitful and multiply. Genesis 1:26-28.

Creating in the image of God and in the likeness of God means conferring on him the whole of God's order from first to last, and so making him an angel as regards the interiors of his mind.

Footnotes:

The sun in the Bible represents the Lord, with its heat representing His love and its light representing His wisdom. “Daytime,” then, represents a state in which we are turned toward the Lord, receiving His love and being enlightened by His truth. And “nighttime,” obviously, represents states in which we are turned away from the Lord, left cold and blind to the truth. The most common word used for it in the New Christian theology is “obscurity.” The darkness is not absolute, of course. The light of the moon represents the understanding we can have based on facts and our own intelligence. But while the moon reflects some of the sun's light, it offers almost no heat, so this kind of understanding is a cold one, without the warmth of love. And at its darkest and coldest, night represents a state of judgment. This happens when a person -- or a church -- becomes so mired in evil and falsity that there is no light or heat. The Lord can then step in, separate the good from the evil, consign the evil to hell and begin rebuilding based on the remnant that is still good. Drastic as that sounds, it is something that we all go through repeatedly in various aspects of our loves, so that we can be rid of what is evil and let the Lord rebuild us as angels.