Arcana Coelestia # 3174
3174. 'Her brother said, and her mother' means doubt on the part of the natural man. This is clear from the meaning of 'a brother' as the good within the natural man, dealt with in 3160, and from the meaning of 'a mother' as the truth there, dealt with in 3167. Consequently 'brother' and 'mother' mean the natural man since this is composed of good and truth. The fact that doubt is meant is self-evident, that is to say, doubt whether the girl would stay a few days longer or whether she would go with the man there and then.
Donkeys
Donkeys signify things relating to the intelligence of the sensual man; and camels, the things of intelligence in the natural man. (Isaiah 30:6, 7)
In Genesis 12:16, donkeys signify earthly knowledge. (Arcana Coelestia 1486)
In 1 Samuel 9:3, donkeys signify the Lord's preparation for His natural life on Earth. (Arcana Coelestia 2781[5])
In Luke 19:28, 41, a donkey and the foal of an donkey signify the natural man as to good and truth.
(Odkazy: Apocalypse Explained 654)