Bonnets (Exodus 28:40), being a covering for the head, signify intelligence and wisdom.

(Odkazy: Arcana Coelestia 9949)

9950. 'For glorious adornment' means the spiritual Church's truth. This is clear from the meaning of 'for glorious adornment' as in order to display Divine Truth as it exists in its inward form and its outward form in the spiritual kingdom lying adjacent to the celestial kingdom, dealt with above in 9815, but at this point the spiritual Church's truth which comes from there. For Aaron represents Divine Good in the heavens, and his sons Divine Truth springing from that Good. Furthermore Divine Good exists there as the Father, and Divine Truth springing from that Good, as the Son; and this being so, 'father' in the Word means good, and 'sons' truths. The latter are also born from the former when a person is generated anew, that is, when he is being regenerated.