How did st Patrick drive out all the snakes?

St. Patrick is famously credited with driving the snakes out of Ireland, which is often interpreted as a metaphor for his efforts to convert the Irish people to Christianity and eradicate pagan practices. The story may be symbolic, as there is no evidence that snakes ever inhabited Ireland after the last Ice Age. Instead, it reflects the triumph of Christianity over paganism. The tale serves to highlight St. Patrick's role as a key figure in Irish religious history.