Âu Cơ is a legendary figure in Vietnamese mythology, often regarded as the mother of the Vietnamese people. She is said to have emerged from the mountains and married Lạc Long Quân, a dragon lord from the sea. Together, they are believed to have given birth to a hundred eggs, which eventually hatched into the ancestors of the Vietnamese nation. The story of Âu Cơ symbolizes the unity of the land and water, representing the harmony between different elements of nature. Her tale is celebrated in various cultural traditions and is an essential part of Vietnam's national identity, highlighting the importance of family and heritage.