Fowl signify spiritual truth; a bird, natural truth; and a winged thing, sensual truth. Fowl of heaven, as in Hosea 2:18, signify the affections of truth; and reptiles of the earth, the affection of the knowledges of truth and good. Fowl signify thoughts, and all that creeps on the ground, the sensual principle. Fowl signify intellectual things.

(Odkazy: Arcana Coelestia 777; Hosea 2)

5958. 'Ten asses carrying some of the good of Egypt' means [superior] factual knowledge together with much of a subservient kind. This is clear from the meaning of 'ten' as much, dealt with in 3107, 4638, 5708; from the meaning of 'asses as factual knowledge, dealt with in 5741, in this case the lowest level of it, dealt with in 5934. Which is subservient since it carries the more internal levels; and from the meaning of 'the good of Egypt' as factual knowledge, as above in 5942, 5949, but factual knowledge which the Church possesses since this is what is meant, strictly speaking, by 'Egypt', 4749, 4964, 4966. The reason this kind is meant by 'the good of Egypt' is that it is sent from Joseph to Israel, that is, from the internal celestial to spiritual good.