In Celtic myths, druids played a crucial role in preserving ancient knowledge and culture. They were often seen as priests, teachers, and guardians of tradition, serving as intermediaries between the physical and spiritual worlds. Druids held ceremonial functions, conducted rituals, and passed down oral histories, emphasizing the importance of nature and the cycles of life. Their wisdom was integral to maintaining harmony within communities, shaping social structures, and fostering a sense of identity among the Celtic peoples.