Arcana Coelestia # 9858
9858. 'With the work of a designer' means a product of the understanding. This is clear from the meaning of 'a designer' as the power of understanding, dealt with in 9598, 9688. The words 'a product of the understanding' are used because the Lord's spiritual kingdom, which is represented by Aaron's garments, is heaven's power of understanding, even as His celestial kingdom is its power of will. And the powers of understanding and will that a human being has correspond to those heavens, see 9835.
Daniel 7:9-10
9
I saw until thrones were placed, and one who was ancient of days sat: his clothing was white as snow, and the hair of his head like pure wool; his throne was fiery flames, [and] its wheels burning fire.
10
A fiery stream issued and came forth from before him: thousands of thousands ministered to him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened.