Many seekers are interested in shamanism because it is a spiritual path that can be followed in conjunction with any religion or other spiritual belief without conflict. But the Native American and African peoples were not the only cultures to traditionally practice shamanism. For centuries, shamanism was practiced by the Europeans, as well - including the Celts. By Oak, Ash, & Thorn presents a modern system of Celtic shamanism, inspired by old writings that suggest that the Druidic order was not the sole system of Celtic religious pratice - that other Celts, who were neither Druids nor bards, possessed and used shamanic powers of healing and prophecy. Until now, very little has been written about the more private mystical practices of the Celts. This inspiring book ensures that Celtic shamanism will take its rightful place among the spiritual practices that help us lead richer lives.