Epona, the divine mare
I took some time out from working on my website to research some ancient myths about horses. I found some interesting stories on Epona.
In Gallo/ Roman religion, Epona was a protector of horses. She was particularly a goddess of fertility and was often depicted with foals. The goddess and her horses were leaders of the soul in the after-life ride.
The feast day set to celebrate Epona is Dec. 18, which is also my birthday.
This is also the source of the word pony.