There was one Anna, a prophetess, the daughter of Phanuel, of the tribe of Asher (she was of a great age, having lived with a husband seven years from her virginity,
And so he is telling Mary, "Look, this child is set for great blessings to the people, but it's going to pierce as a sword through your own soul." Preparing her for the agony and the pain that she would experience, as she would watch one day this child, hanging on the cross.