Scroll of Errata p. 75-76 said:
Abyssal Redemption
The guidelines and rules for Abyssal redemption are as follows:
Trapped inside the tainted Essence of every deathknight is a dim spark of Solar glory, a fragile hope that gutters like a windblown candle with the faint promise of redemption. The epiphany that damnation isn't inevitable eventually occurs to almost every Abyssal despite the best efforts of the Neverborn, triggered by a conflict between an Intimacy (or former Intimacy) and the murderous urgings of Dark Fate. Canonically, no Abyssal has ever followed through on this hope to earn redemption, making any player-controlled deathknight to rejoin the light the first of her kind. While the specific requirements of redemption are left to Storytellers to decide based on the needs and scope of each series, the basic guidelines and the results are explained below:
• Redemption should represent the culmination of a great and lengthy quest rather than a reward for singular acts of heroism. A bare minimum of one story devoted to the task per dot of Essence is highly recommended, reflecting the fact that it is harder to turn back from the darkness the farther you explore its power. Abyssals can also choose to permanently lower their Whispers rating by one dot at the end of each story devoted to redemption (returning 3 experience points if Storytellers give compensatory experience for lost Backgrounds).
• Redemption is a personal quest and does not require any external assistance or permission, nor may it be accomplished by another entity on the Abyssal's behalf—not even the Unconquered Sun or Autochthon. The inherent power to seek redemption is the legacy of every Solar Exaltation, drawing on the metaphysical inviolability of Ignis Divine. Because redemption is so personal, one deathknight's path to the light may not work for others, depending on personality and background.
• Redemption requires profound understanding of Solar Exaltation and the ideals of the four Virtues. Wise mentors can provide this knowledge, though humble mortals often have as much to teach as cosmic powers like Primordials or the Unconquered Sun. Arduous ordeals of trial and error also provide a viable path to enlightenment in the absence of direct instruction. The Charm Unconquered Hero's Faith (Manual of Exalted Power—The Abyssals, p. 140) offers tantalizing hope and gives a reliable firsthand opportunity to study Solar Essence, but characters aren't required to learn it to achieve redemption and should be mindful that rapid Resonance accumulation tends to do horrible things to bystanders.
• Redemption always involves building relationships with the living, helping others, affirming life and directly opposing the forces of Oblivion. Such actions accumulate significant Resonance, punishing the character with regular Dark Fate manifestations and concomitant tragedy.
• Redemption always involves some form of meaningful sacrifice, often the hero's own life (especially if the final act of heroism involves destroying a greater threat, like one's Liege). An Abyssal who dies as a Solar passes on to Lethe or lingers as a ghost as desired, while her cleansed Essence incarnates in a new Solar.
• Redemption is absolute. Once a Solar Essence slips from the grasp of the Neverborn, the only way to steal that Essence back to the side of Oblivion is to wait until it incarnates again in a new host (or to assist that reincarnation process along).
• If an Abyssal attains redemption, her anima flares iconic as her Caste shifts to a Solar analogue, mirroring the process and rules of corruption (see Manual of Exalted Power—The Abyssals, p. 117). Known Void Circle spells remain only as inaccessible occult theory. The Lawgiver probably loses all Whispers, but may retain her rating as a psychic "scar" of her former state if that suits the character better. If the new Solar had a monstrance, it shatters violently with her redemption in an explosion of Holy golden flames that inflict 10A levels of damage to creatures of darkness within five yards as a one-time Trauma 10L environmental hazard. Especially generous Storytellers may allow Solars to reclaim experience points spent on Void spells and Combos lost in the conversion, though this is hardly required. After all, the character should seek redemption because she believes it is the right thing to do no matter the price.
• A redeemed Solar lacks the Great Curse, and may not be subjected to it again by any means in this or any future incarnation. Similarly, children of Dragon-Blooded freed of the Curse retain this immunity and pass it on to all their descendents. All Exalted who have been cured of the Great Curse still possess a Limit track, but no longer gain Limit by any means other than having it inflicted upon them directly by magical effects, such as the Abyssal Charm Sanity-Eroding Diatribe, or the Solar Charm Bloodthirsty Sword-Dancer Spirit. Resisting unnatural mental influence is not such an effect and does not grant Limit any longer. Their Virtue Flaw disappears. When the character's Limit hits 10, she loses one dot of permanent Willpower (minimum Willpower 1) instead of entering Limit Break madness. Lost dots naturally return at the rate of one per month since experiencing Limit Break The original Exalted Limit track was originally designed by the gods and Autochthon to act as an ablative defense against madness-inducing Primordial magic. Unfortunately, Limit created an unintended backdoor vulnerability that the dying Primordials exploited and corrupted with their Great Curse, bypassing anti-Shaping defenses through this hidden imperfection. It is scant comfort that only the death curses of the Primordials could exploit this crack and that they cannot do so again. Alchemical Exalted, who were never subject to the Great Curse, also possess such a Limit track, though they are unaware of this as there are no beings in Autochthonia with Limit-inducing magic, and Alchemical Charms cannot give their own user Limit. Abyssals form the singular exception to this rule—their Limit track has been twisted into the apparatus by which the Neverborn inflict Resonance on them, and any effect which would give an Abyssal Limit instead grants equivalent Resonance.
• Any Charms which rely on the character possessing the Great Curse to function (such as Stubborn Boar Defense) are converted into experience, but are considered known for the purpose of meeting Charm prerequisites. Charms that merely add Limit function as stated above.