To begin, it’s helpful to have some background on Samhain. In Celtic Ireland, around 2,000 years ago, Samhain represented the division between the lighter half of the year that was summer and the darker half that was winter. During the interim, ancient people believed that the line between the spirit world and the mortal one became so thin that the dead could pass through it and walk the earth once more.
Eventually, an angel came to him in a dream and urged him to return home. “You have fasted well,” it said, “very soon you will return to your native country.” Thankfully, this helpful spirit also let Saint Patrick in on the latest ship departures and he was soon in pursuit of one that would take him back home. He trekked over 200 miles of forests, bogs, and brambles until at last, he reached a port that may have been Wexford.