Loghrif is a character from Final Fantasy XIV. She was one of the two Ascians sent to the First to aid in causing the Umbral Calamity. She plays a role in the backstory of the Final Fantasy XIV: Shadowbringers expansion as well as the Eden's Promise raid storyline.
Long before the Sundering of their world, originally known as Gaia before obtaining her title, Loghrif offered herself to be sacrificed as the catalyst to summon Zodiark into existence. Her lover Mitron convinced her not to do it, with Elidibus taking her place.
Following the Sundering, Loghrif was brought back as an Ascian when the unsundered found one of her shards and restored her memory. Loghrif was reunited with Mitron soon after as the two were assigned to the First to prevent it from falling victim to the Flood of Light resulting from an imbalance among the Shards of the now splintered world, caused by the Thirteenth becoming the Void. Emet-Selch later ordered the pair to tip the balance so the First could be absorbed into the Source during its eighth Umbral Calamity. The First's Warriors of Light defeated Loghrif and Mitron, with the former killed while Mitron was transformed into Eden, the first sin eater. Influenced by Ardbert's strong desire to banish Darkness, Mitron unleashed the Light inside of him that flooded the world.
Loghrif's soul remained in the First and eventually reincarnated as a girl in Eulmore who would lose her memory as a result of the altered Mitron's influence, hence adopting the name of her past life as it was whispered to her: Gaia.
Her true name is Gaia. Gaia or Gaea was the goddess or personification of Earth in ancient Greek religion, one of the Greek primordial deities. Gaia was the mother of all: the heavenly gods, the Titans and the Giants were born from her union with Uranus (the sky), while the sea-gods were born from her union with Pontus (the sea). The Greek word "γαῖα" (transliterated as gaia or gaea) is a collateral form of "γῆ" meaning Earth. Her equivalent in the Roman pantheon was named Gaea (Terra in more ancient documents). This is alluded to in Final Fantasy IX with the existence of Gaia's twin world.
The mythological name Gaia was revived in 1979 by James Lovelock, whose Gaia hypothesis proposes that living organisms and inorganic material are part of a dynamic system that shapes the Earth's biosphere, and maintains the Earth as a fit environment for life. In some Gaia theory approaches the Earth itself is viewed as an organism with self-regulatory functions. This theory is especially alluded to in the Final Fantasy: The Spirits Within take on Gaia as the planet's soul.