For those of you who want to know the history of St. Patrick, check out this informative video on the History Channel. Click here History Channel - The History of St. Patrick's Day - Video. According to Wikepedia, the Irish phrase "Erin Go Bragh" means Ireland until eternity or Ireland the beautiful.
May you have:
A world of wishes at your command
God and his angels close at hand
Friends and family their love impart,
And Irish blessings in you heart.