Holt Kazed was the term used by the Nelvaanians for the heroic individual known as Ghost Hand, who legend said would come during a time of great need. The Nelvaanians believed that Anakin Skywalker was the Holt Kazed, due to his mechanical hand, which he wore during the Clone Wars.
According to the legend, the Holt Kazed was a warrior who would lose his hand in battle with a great beast or monster, but who would then receive a new one that would grant him great power. With this power, the warrior would be able to defeat any enemy. The Holt Kazed, it was prophesied, would come to the Nelvaanian people in a time of great hardship and sorrow, when nature herself (the Great Mother planet) would be hurt, or violently thrown out of balance by a great illness—which ultimately the hero would heal. But the legend had a dark, ominous side to it, as it foretold that the warrior's power would increase mightily to the point where it would overpower him, kill his friends, strangle his loved ones, and, eventually, utterly consume the hero himself.
Had this legend been more carefully studied (and Anakin more forthcoming to Master Kenobi about his visionary experience in the cave before the Battle of Nelvaan, having evasively dodged Obi-Wan's earnest inquiry), it could have been discovered that the Nelvaanians had foretold Skywalker's loss of his forearm to one monster (the warmongering Sith Lord Darth Tyranus) only to allow himself to be monstrously transformed into, and by, another—the Sith Lord Darth Vader: his Betrayal of the Jedi Order, the murder of his wife Padmé Amidala, and his transmutation into a cyborg at the hand of the monstrous Sith Emperor Darth Sidious. And while the legend of the Holt Kazed spoke of the return of a balance to nature (the Force), it did not allude, however, as did the Jedi prophecy of the Chosen One, to a final redemption of the hero. As such, the Nelvaanian legend/prophecy served, primarily perhaps (as per Anakin's Well of the Dark Side vision in the realm of Mortis), as an ominous personal warning for the one in whom so many had vouchsafed their hopes of salvation and restoration.