just because your atheist doesnt mean you cant celebrate with others or have fun on the holiday! i enjoy the hell out most religious holidays but at the same time i dont beleave in religion or anything that goes with it! but others do and yes its an excuse to have fun! live alittle. oh though most people might not know the entire story about St. Patricks day im sure they understand that it has to do with catholics it has saint it the title!