"Calling it a "very grave situation," the Vatican has excommunicated members of a controversial Quebec Catholic movement, the Army of Mary, for their heretical beliefs that derive from the writings of Marie-Paule Giguère, an 86-year-old mystic who claims to be a reincarnation of the Virgin Mary....In her writings, Mme. Giguère described visions and messages she received from God, explaining that Mary, the mother of Jesus, is fully divine, and also that, as her modern incarnation, so is Mme. Giguère. Rather than the traditional Catholic Trinity - in which God, Jesus and the Holy Spirit are each fully divine and part of a three-part deity - the Army of Mary now speaks of a "quinternity," including Mary and Mme. Giguère...They would say that they would not subscribe to some of the limitations that we would put on the creed." You can read about it here.
Well...isn't that what the [Nicene] Creed is for? To describe who God really is (and is not)? The "limitations" are there to make sure that we are proclaiming the Truth about who God is, and not error.