According to one story, in the 5th century, Irish raiders took Saint Patrick from his home and enslaved him in Ireland. Some scholars believe that Saint Patrick fled to Ireland to avoid having to follow in his father’s footsteps as a tax collector, a risky job. He might have also been a slave trader, History.com reports.
However, according to the legend, during his captivity, he turned to the Holy Spirit for guidance, eventually becoming a devout Christian. Feeling called to return to Ireland, he became a missionary, spreading the message of Christ and converting the Irish to Christianity.
Saint Patrick supposedly used the shamrock to explain the Holy Trinity — the Father, the Son, and the Holy Spirit — helping the Irish understand and embrace Christianity. His work laid the foundation for the strong Christian presence in Irish history.