"He Whom not even the universe could contain was contained within the womb of a virgin, making her more spacious than the Heavens."
The failure to recognize this simple emphasis shift results in the most obvious heretical errors. If Mary gave Christ his humanity by an act of her will, she is the supporting mechanism, and Christ continues to be contained by her, supported by her, emanating from her, infinitum. This is clearly evidenced by the myriad works of art depicting Jesus as a perpetual child in the lap of Mary, suckling from Mary, drawing his life from Mary. Your posted picture and quote is a very telling example of this heresy.