The St. Patrick's Cross is a symbol associated with St. Patrick, the patron saint of Ireland. It features a simple Latin cross with a circle around the intersection, representing the unity of heaven and earth. The design is often linked to the spread of Christianity in Ireland during the 5th century. This cross is commonly seen in various forms, including stone carvings and flags. It is a significant emblem during St. Patrick's Day celebrations, reflecting Irish heritage and culture. The cross serves as a reminder of the enduring influence of Christianity in Irish history.