In Gallo-Roman religion, Epona  is a fairy-queen goddess, a protector of horses, ponies, donkeys, and mules.   Temples were built in her honor during Roman and Celtic eras where horses  were essential to everyday life. Epona is also a protector of the environment and nature spirits.

Call upon Epona for help of any kind involving horses; or to help you communicate with nature, fairies, and crystals.

In the picture – A relief of Epona, flanked by two pairs of horses, from Roman Macedonia. (from Wikipedia online encyclopedia)