Among the Irish Celts, Raven was associated with the Triple Goddess, the Morrigan, who took the shape of Raven over battlefields as Chooser of the Slain. She was a protector of warriors, such as Chuhulian and Fionn MacCual.
Raven is also the totem of the pan-Celtic Sorceress/Goddess Morgan le Fay, who was also called the Queen of Faeries. In some tales, she is Queen of the Dubh Sidhe, or Dark Faeries, who were a race of tricksters who often took the form of ravens.
“To have a raven’s knowledge” is an Irish proverb meaning to have a seer’s supernatural powers. Raven is considered one of the oldest and wisest of animals.
Although the crow was ill-omened, it was also considered to be skillful, cunning, single-minded, and a bringer of knowledge. It is of value when trickery is needed. It also teaches you to learn from the past, but not hold onto it.