In Ezekiel 26:11, this signifies the love of learning or intellectual things. (Arcana Coelestia 3727)

In Revelation 6:2, this signifies the love of understanding the Word. (Apocalypse Revealed 298)

In Zechariah 12:4, this signifies that the intellectual should be filled with falsities. (Arcana Coelestia 2383[2])

In general, 'a horse' signifies knowledge or understanding of the Word. In an opposite sense it signifies the understanding of the Word falsified by reasonings, and likewise destroyed from self-derived intelligence. 'A dead horse' signifies no understanding of truth from the Word.

8056. 'A land flowing with milk and honey' means where there is gladness and joy. This is clear from the meaning of 'a land flowing with milk and honey' as pleasure and delight, dealt with in 5620, 6857, and so gladness and joy. The words 'gladness and joy' are used because in the Word 'gladness' has reference to truth, and 'joy' to good; and pleasure and delight have similar reference. In addition 'milk' has reference to the truth of good, and 'honey' to the good of truth.