In the Bible, things that are lower down, or under, physically, generally represent things that are lower or more external spiritually. In some cases, the lower things have been separated and put away to protect the good, but in others, it can mean that a less exalted idea or good desire is supporting a more exalted one.

(Odkazy: Arcana Coelestia 4564 [1-2], 8610, 9656)

8611. 'And Aaron and Hur' means the levels of truth next in order. This is clear from the representation of 'Aaron and Hur' as the lower levels of truth next in order to the highest level, which is represented by 'Moses', dealt with above in 8603.