About: The Blessing of Light, Crystals of Light, Haedalyn and her champions...
A general purposes thread for discussing and exploring the nature of the above. Feel free to share both canon quotes and your own fan-theories and speculations.
I don't think it bears mentioning, but non-the-less...
<Spoilers for the plot of FFXIV:ARR and Heavensward>.
Crystals of Light
A set of special aetheric(?) crystals of unknown number, connected to the Mothercrystal and her Blessing of Light. Ysayle notably possessed one, marking her as a "Chosen/Champion of Haedalyn".
The Blessing of Light
A power possessed by the WoL, making him/her "beyond mortal limits". Seemingly requires a full set of six Crystals of Light embodying the elements to reach it's full power. Especially dangerous to Ascians.
Represented as a hexagonal magic seal with the Crystals of Light set up to fill six spots held within.
The Blessing of Light MK. II
During the events on Azys Lla, the Blessing is restored in a new and more powerful form, stronger than ever. In Lahabrea's words, it has grown so great that it "denies Ascians their power".
Represented as a new seal, far bigger and more intricate than the previous one. Visibly falls over and 'overwrites' the previous Blessing of Light.
The Echo
An ability possessed by a rare few individuals. It's exact nature is never explicitly defined, but it seems to deal with the boundary between souls. Allows communication across any languages, and grants the user the ability to recieve messages/communing with Haedalyn herself.
The Sahaguin Priest that summons Leviathan achieved a form of suspiciously Ascian-like form of immortality by supposedly using the Echo under their guidance.
Also; the battle with the Ascian Prime. Lahabrea and Igeyorhm invoke what they call "The true power of the Echo" to meld together into a single entity, massively enhancing their own powers.