Epona, from Celtic Gaul, was especially worshiped as a protectress of horses, a bringer of fecundity to mares and well-being to foals. She was the only Celtic goddess to be adopted by the Romans. A lunar goddess, Epona is often depicted with a cornucopia, a symbol of abundance and plenty. Like the symbol of the horse, she is a bringer of fertility, a source of inspiration, and a figure of death – a psychopomp on the soul’s final journey. As late as the twelfth century, Irish kings underwent a ceremony of symbolic birth from Epona in her form of a white mare part of claiming their kingship. In ancient days, a king was ritually wedded to the goddess as part of becoming king.
Comfortable in both realm of life and that of death, Epona is a strong symbol of independence, instinct, and vitality.
SIDE NOTE: In modern times many pagans believe that Epona watches over all domesticated animals to help protection them