The production elements are not heaven sent. The set designs of David Korins are clever, but confusing and cluttered. The Kong-size doors, the ready abundance of knives, spears and scythes, keep the eyes very busy and the questions coming.
By bringing Christianity to so many of the Irish people, Patrick was a major instrument of Christianity supplanting the Druids. And, by doing so, Patrick "drove the snakes into the sea" in a metaphorical way.