Anyone Care to Translate for Me?

This is the holiday sign in Gaelic I mentioned. I never did find out what it meant. Wasn't Gaelic connected to a Pagan religion? I mean, wasn't it pre-Christmas? So wouldn't it say "Happy Solstice" or something like that? Or perhaps it just says, "Bailey's Irish Cream" and I'm inventing the whole holiday angle. I'd love for someone to enlighten me on this. By the way, the Irish don't call their language "Gaelic", they call it "Irish," and when I said "Gaelic" I got some funny looks. I'd be curious to learn about that distinction and if "Gaelic" is offensive in some way.

So much to learn, and so little discipline to do so.