This poem, in the new issue of Bear Review, is surrounded by many other magical poems and art, and it is a poem, in part, about the garden of eden. It was written after immersing myself in the art and writing of Leonora Carrington. Carrington is one of the greatest artists of the 20th century, and into the 21st.
Is it also part hobby horse, from Tristam Shandy? There might be some hobby horse in there, but really it is asking for more wild horse, not the domesticated horse, although that is just one possibility. It is also whatever else you want to assign a horse.
One thing for sure. It is definitely a poem about a horse.