La Llorona, or "The Weeping Woman," is a prominent figure in Mexican folklore, known for her tragic tale of a woman who loses her children and wanders near bodies of water, crying for them. The legend often serves as a cautionary tale, warning children to stay away from rivers and lakes to avoid her haunting presence. Over time, La Llorona has become a symbol of grief and loss, representing themes of motherhood and the consequences of one's actions.