Magic Forums

I was talking to a friend of a friend the other night and she referred to her "birth cards" (2 apparently) and said there was a way to find your cards using your birthdate but couldn't remember how. I had never heard of this before. I honestly don't use tarot cards much, I have a couple decks but haven't used them in years. But that made me curious and I was wondering if anyone here knows more about it. Thanks :)