Maybe you could try to think about the magic of Christmas and how it is supposed to be as opposed to the commercialism.
The picture reminds me of both Christmas decorations and Mass... not sure if thinking of transubstantiation would be a help or a hindrance for you, even though technically that is not 'magic' but hopefully you know what I mean. lol
After this thread, I'd be surprised if the card doesn't make you laugh anyway. The idea alone of Jesus wishing you a Merry Christmas... lol It's just so thoughtful of him.
Falalalala, la la la!