On My Etsy Shop: Signed & Matted 5x7 Isis Art Prints $20. Isis was a goddess in Ancient Egyptian religious beliefs, whose worship would later be adopted by many other ancient cultures. She was worshiped as the ideal mother and wife, as a patron of nature and magic, as well as a compassionate friend to all who call upon her, be they slaves, sinners, artisans or wealthy aristocrats. Isis is also known as the goddess of simplicity, from whom all beginnings arose, and was the Lady of bread, of beer, and of green fields. In later myths, Ancient Egyptians believed that the Nile River flooded every year because of her tears of sorrow for her dead husband, Osiris. This occurrence of his death and rebirth was relived each year through rituals.