That is indeed the one I speak of. I assume he has already informed you of your status as her reincarnation too then? [He doesn't pause long enough to allow for an answer.] It seems that she was responsible for the sealing of a demon king, and her first reincarnation was party to those responsible for his destruction. However, it seems the demon king vowed to dog the steps of Hylia and her chosen hero for all time. Ghirahim was the sword of that vengeful demon king.

[He pauses to give Zelda a rather grave look.]

...He referred to me as "master."