I missed this thread the first time, but I wondered if the lady you've been talking with follows ascension theory. I don't subscribe to these teachings at all, but I've spent time with people who are very into it, so I've got a basic understanding. The Archangel Gabriel features as one of the Ascended Masters and (my memory is a bit foggy) but each of the masters is supposed to transmit a particular vibrational frequency, hence the "ray" part...as we near 2012 (well actually it used to be 2010...the date has shifted a bit ) the theory goes more and more of this energy is being transmitted into the earth plane, hence souls being born at a higher vibrational frequency (which sort of ties in with the indigo and blue children ideas too). So maybe she was saying she thinks your DD was born on the same vibrational frequency that Gabriel transmits at. There's actually a chakra map relating to Ascension, the masters govern the transpersonal chakras (the ones that sit outside your body, above the crown chakra) and I think one of those are portrayed as blue, so maybe there's a correspondence there too.