Along with St. Bridget and St. Patrick, St. Columba (c. 521-597) is a patron saint of Ireland. Although he led an exemplary life, traveling all over Ireland to set up churches, schools, and monasteries, he is chiefly remembered for his self-imposed exile to the island of Iona off the Scottish coast. He landed at Iona on the eve of Pentecost, and proceeded to found a monastery and school from which he and his disciples preached the gospel throughout Scotland. Although he had been forbidden to see his native country again, he returned several years later. Discuss