Boann- Celtic GodDeity"Goddess of the Boyne"

The Well of Segais

Boann was the wife of Nechtan, who guarded the Well of Segais, the sacred source of all wisdom. The well was surrounded by nine hazel trees whose nuts contained the totality of knowledge, and only Nechtan and his three cupbearers were permitted to approach it. Boann defied the prohibition and walked around the well counter-sunwise. The waters rose up at the transgression, and three waves surged forth and maimed her, taking her eye and her thigh. She fled toward the sea with the waters pursuing her, and together they carved the course of the River Boyne through the landscape of Meath. In the Dindsenchas, she became the river itself, her body transformed into the flowing water that would bear her name. The salmon that swam in those waters had consumed the hazelnuts of wisdom and would one day transmit that knowledge to Fionn mac Cumhaill.

Mother of Aengus Óg

While married to Nechtan, Boann became the lover of the Dagda, chief god of the Tuátha Dé Danann. When she conceived, the Dagda used his power over time to hold the sun in place for nine months, so that the entire pregnancy passed in what appeared to be a single day. Nechtan returned from an errand unaware that any time had passed. The child was Aengus Óg, fostered in secret by Midir of Brí Léith to conceal the affair.