The mythology of Tara
The legend of Conn of the Hundred Battles illustrates the importance of Tara. The Kingship of Ireland was granted by the otherworld. Conn, his druids & his fili (poet seers), in their efforts to protect Ireland from the people of the otherworld mounted the ramparts at Tara. He stepped on a stone that let out several loud cries. Each cry represented a descendant of Conn's that would be High King. He had stood on the Lia Fáil, the Stone of Destiny, said to cry out when a true King entered Tara. Conn was granted Tara by Lug, the good god. Lug instructed the beautiful goddess Medhbh, whom he proclaimed was “the Sovereignty of Ireland,” to serve Conn a drink of ale from her vat. Lug then instructed her to offer each of Conn's successors a drink from her vat until the Day of Judgement--wiki

Tara’s Warrior Goddess Maeve