In Joshua 8:1-29, Ai signifies knowledge of good, and in the contrary sense confirmations of evil. (Apocalypse Explained 655[8])

In Genesis 12:8, Ai signifies part of the Lord's fourth state in advancing from obscurity to light. (Arcana Coelestia 1401)

In Genesis 12:8, Ai signifies that the Lord's state was still obscure, for Ai signifies the knowledges of worldly things, in spite of being on the east. (Arcana Coelestia 1453)