In Irish folklore, the phrase "Tuatha Dé Danann" refers to the divine race of gods and goddesses known for their skills in magic and the arts. It translates to "the people of the goddess Danu," signifying a connection to fertility and wisdom. The Tuatha Dé Danann were believed to inhabit the Otherworld and represent a rich tapestry of myths that emphasize the blend of nature, magic, and the supernatural in Irish culture.