Can you describe Celtic mythology cultures?

Celtic mythology encompasses the rich traditions and beliefs of ancient Celtic cultures, primarily found in regions such as Ireland, Scotland, Wales, and Brittany. Central to these mythologies are a pantheon of gods and goddesses, such as the Dagda and Brigid, alongside legendary heroes like Cú Chulainn. The mythology often features themes of nature, the Otherworld, and the interconnectedness of life and death. Oral traditions, reflected in epic tales and folklore, reveal a deep reverence for the land and its spiritual significance.