I get animals in dreams frequently. Recently it was gorillas, namely a raging male gorilla - run for your life! Most frequently they are lions. Anyway I try to think what an animal represents to me.

Like Tim noted, horses are a beast of burden (Tim knows horses well, intimately I s'pose). But I got to thinking 'what is a horse's nature'? and my thoughts turned to the Mustangs that are a bit of problem in the US Southwest. These are wild horses, not domesticated, so you get the natural beast of the animal observing them.

They will fight for their lives when there is any attempt to capture them. They cannot stand being fettered at all. The men with the horse heads were small, you say. Mustangs are smaller than your typical domesticated horse. Come to think, the horses of Mongolia are small as well.

That you have to 'remember' they are your friends speaks to a inclination to think otherwise. If the men had had bovine heads we could have a field day with that symbolism. Not the case.

(I always enjoy reading your journal).