Luck of the Irish to you! The saying refers to the fact that the Irish people have come through such overwhelming adversity and have come out on top and kicking! It must be luck... or true perseverance. As a college football fan and watching the last two seasons of Notre Dame's season, that saying just would not make sense!
You don't need the luck of the Irish today...you and I need the love of the Lord. It may sound a little Christianese but if we could go after God's way, life would have a wonderful way of resetting itself. Seek first the kingdom of God and His righteousness and ALL these things shall be added to you. Luck is for people that do not understand destiny.
God has a plan and a purpose for our lives. He set things up ahead in advance so that we could choose His way and have the life that He wanted us to have all along. So if you are going to celebrate today, make sure that you acknowledge the One that is making all things work together for your good. It's not about luck...it's all about love!