Fabula Nova Crystallis: Final Fantasy/Recurring elements

The following is a list of recurring elements in the Fabula Nova Crystallis: Final Fantasy subseries. As the games in Fabula Nova Crystallis: Final Fantasy series share a common mythos, they have common concepts albeit used with varying interpretations.

Roles of crystals
Crystals represent souls, divinity, and the origin of magic. This harkens back to the main Final Fantasy series where crystals have been a staple since the series' inception, but Fabula Nova Crystallis—as the name suggests—aims for new interpretations of the role of crystals in the series.

Divine tasks given to humans via the intermediary of the crystal is an overarching concept in the series. In Final Fantasy XIII and its sequels, and the Type series, these manifest as Foci, tasks given to l'Cie either by the fal'Cie (in Final Fantasy XIII) or a Crystal (Final Fantasy Type-0), but the effects on the l'Cie differ between these worlds. Also in Final Fantasy Type-0 Arecia Al-Rashia, a divine servant, has chosen the cadets of Class Zero to carry out a task, namely, to become Agito.

Crystals have a will of their own that drives life, and by their acts a desired destiny can be meted out. Deviation of this will transforms a l'Cie into a Cie'th—a monster—as punishment. In Final Fantasy XIII the fal'Cie want to forge the tools to strike down Cocoon with further downstream effects that manifest as time paradoxes and the end of time and broken cycle of life. Try as they might to escape their fate, Lightning and her friends inadvertently act out the destiny that was designed.

In Final Fantasy Type-0 Cid Aulstyne to pursues military occupation against the other Crystal-Nations to free Orience from living under the Crystals' "guidance", which he deems closer to a form of enslavement. This campaign is reciprocated by the Dominion of Rubrum and Class Zero, which through actions spurred on by the Crystals culminates in Tempus Finis. The escape of being puppets to a higher power is a major theme explored in the series.

Crystals represent life. People's souls can appear as crystalline specks, and l'Cie in crystal stasis, as well as those who go on to turn into Cie'th, have their souls trapped on the mortal realm by crystallizing the body (some refer to this as gaining an eternal life). In Final Fantasy XIII the crystals (known as eidoliths) that turn a regular human into a l'Cie are implied to originate from the gods, as when Lightning and her companions enter the domain of the gods to face Pulse, his tendrils appear to implant the crystal shards into their bodies. The fal'Cie, directly created by the gods—Pulse and Lindzei—are sentient immortal machines powered by a crystal core, presumed to likewise originate from the gods.

The gods of the Fabula Nova Crystallis series take on a role akin to the "Great Old Ones" from H.P. Lovecraft lore; unlike archetypal benevolent gods in religion, the gods and fal'Cie are largely indifferent to the actions of humans, instead carrying out their independent existences, utilizing humans as instruments when necessary. In Final Fantasy XIII when the party reaches Gran Pulse, the local fal'Cie are disinterested in the first humans from Cocoon to set foot on the ground for hundreds of years. Pulse and Lindzei, opposed and loathed by the opposite's human worshipers, are similar, and show no compassion toward humans, sending almost every last one to their graves as l'Cie tasked in slaying increasingly monstrous creatures. The goddess Etro is seemingly the only deity who empathizes with humans.

L'Cie and fal'Cie, as well as Cie'th, wield magic, and it is implied this power is granted by the crystal. In Final Fantasy XIII l'Cie "channel" their spells from their eidolith. A l'Cie can forge a pact with an Eidolon, messengers of the goddess Etro, and summon them to the mortal realm via their eidolith. Serah Farron relinquishes a "crystal tear" to her fiancé Snow Villiers, and it is implied to act as an extension of her being, allowing her to see and hear those near the crystal tear even if her physical body is elsewhere.

In Final Fantasy Type-0 the Crystals take a more traditional role as in early main series Final Fantasy games as entities that govern great magical power granted to the kingdoms of the world. The Crystals of Orience are sentient and make humans l'Cie to exert their Will in the world, even if Pulse and Lindzei also exist in the mythos, but one's soul can again be bound on the mortal realm via crystallization of the body. The Eidolons have a different form in Final Fantasy Type-0 than in Final Fantasy XIII, not being mechanical beings, but they are again implied to be of divine origin.

Glimmering floating intangible crystal shards that represent human souls appear in the Fabula Nova Crystallis games. They appear near the end of Final Fantasy XIII and in its sequels, and in the background of menus—such as the save screen—in Final Fantasy Type-0. Despite no longer being officially considered a part of the Fabula Nova Crystallis: Final Fantasy series, the crystal specks appear in the title screen of Final Fantasy XV Episode Duscae as well as in trailers for the game. The shards also appear during select story scenes tied to the mythos within each game.

Roles of humans
Humans in the Fabula Nova Crystallis mythos are unique creatures without parallel: they were created from material in the physical world (the blood of Etro), but hold the energy of the unseen realm (the chaos forming their hearts) inside them, giving them emotions and an independent self. This allows them to exist in both the physical and the ethereal. Other creatures, such as the world's deities and fal'Cie, are tied to the physical realm, and Etro was tied to the unseen realm after her death. The power humans hold is generally exploited by the fal'Cie by branding select humans as l'Cie.

The concept of l'Cie alludes to the Warriors of Light, a recurring theme in the Final Fantasy series where a group of warriors brought together by circumstance become "branded" the Warriors of Light by the crystal, giving them a mission to save the world and often special powers to achieve said mission. This is part of a larger concept of Fabula Nova Crystallis: Final Fantasy in re-imagining core concepts of the series. In previous games becoming a Warrior of Light was depicted as heroic, whereas the Fabula Nova Crystallis series explores the concept of servitude to the crystal in a more sinister light, bringing the free will of chosen "warriors" into question.

Human souls and their journey to the gate to the afterlife, known as Etro's gate, plays a role in all of the Fabula Nova Crystallis games, as do the recurring deities Pulse, Lindzei and Etro. This alludes to the original mythos where the creator god Bhunivelze wishes to find a way to enter the realm of the dead without needing to die himself, and creates the three lesser deities to help with the task. In Final Fantasy XIII and Type series, the deities have tasked their followers to find the gate in varying ways, but the humans of the world are largely ignorant of the concept of the afterlife.

Final Fantasy XIII

 * Orphan indirectly refers to the series title with the line, "From shattered shards, a new crystal legend will arise".
 * The thirteenth Analect is called "Fabula Nova Crystallis". The analects themselves reprise the story from the official mythology adapted for the world of Final Fantasy XIII, and thus include the creation of Cocoon. Arks are armories created by Pulse fal'Cie, for "a battle in the beyond", referring to the battle Bhunivelze plans to wage against Mwynn after the Door of Souls is found.
 * There is a piece of music on the fourth disc of the Final Fantasy XIII: Original Soundtrack called "Fabula Nova Crystallis".

Final Fantasy XIII-2

 * The fragments Etro's Sorrow, Pulse's Resolution, Lindzei's Desire, Mwynn's Tenderness and Bhunivelze's Sleep allude to the official mythos where Etro suffered abandonment, Pulse was determined to find the gate to the afterlife, Lindzei wanted to protect the world, Mwynn was kind and compassionate, and Bhunivelze fell into a deep crystal sleep to be awaken when the Door of Souls would be found.
 * Chaos, the malevolent substance that is also the building block for human hearts, was not mentioned in Final Fantasy XIII, but plays a crucial role in Final Fantasy XIII-2. The idea alludes to the official mythos where chaos is the substance threatening world balance.
 * The concept of reincarnation is introduced in the form of Yeul and Valhalla. In the official mythos all souls form part of a cycle of reincarnation. In Final Fantasy XIII-2, souls pass through Valhalla to the unseen realm where they sink into the chaos until retrieved and placed inside new bodies while their hearts return to the chaos. Yeul's soul holds on to its identity and is unable to rejoin the cycle, so Etro grants it a constant rebirth in the same form: her various selves persisting in the unseen realm causes a critical imbalance in the levels of chaos that spells the end of the world.
 * In the official mythos goddess Etro crafts people's hearts by placing a shard of chaos inside every newborn. In Final Fantasy XIII-2 Caius Ballad has the "Heart of Chaos", said to be Etro's own physical heart, given to him by her.
 * Hope named the New Cocoon "Bhunivelze" after the deity who created Pulse, Lindzei and Etro in the official mythos.

Lightning Returns: Final Fantasy XIII

 * The original mythos is reprised in the form of murals in the Temple Ruins. It focuses on Bhunivelze and his view on death as an impurity that ought not to exist. Bhunivelze himself hails from the official Fabula Nova Crystallis: Final Fantasy mythos. His turning into a crystal in the end alludes to the official mythos where Bhunivelze fell into a deep crystal sleep until he would be ready to challenge Mwynn in the unseen realm. Like in the official mythos, Bhunivelze desires to be the all-powerful ruler of the universe.
 * Bhunivelze wanting to make Lightning the new goddess of death to facilitate the cycle of life may allude to Mwynn giving Etro a similar task in the official mythos.
 * There is a student in Ruffian who studies "crystal legends", alluding to the term Fabula Nova Crystallis.
 * The Temple of Light's Altars have long corridors with views to different areas from the trilogy, same as how Pandæmonium from Final Fantasy Type-0 has four long corridors with "windows" that look out to abstract areas from the game's past under attack.

Final Fantasy Type-0

 * All deities, except for Bhunivelze, have an accessory named after them. Pulse, Lindzei and Etro appear as part of the game's lore, although they are barely mentioned.
 * When Class Zero is heading to the top of Pandæmonium, Cid mentions that mankind was born from Etro's blood, alluding to the original mythos.
 * There are numerous references to Etro's gate:
 * Ace's cards have a symbol similar to the gate on them.
 * Cubes sport a symbol similar to the gate.
 * Relic terminals sport a symbol similar to the gate.
 * The cover of Rubicus bears a depiction of the gate.
 * The front of the Altocrystarium sports a symbol similar to the gate due to its relationship to souls, or phantoma.
 * When Dr Arecia summons Bahamut ZERO, the portal he emerges from is in the image of an eye.
 * Above the Pandæmonium there is a large fiery sphere around which cogs turn and a mechanism with likeness to Etro's gate.
 * Certain trap floors in Pandaemonium that deal damage when stepped on bear the likeness of Etro's gate.
 * The design of the Rursan Arbiter sports many eye-like structures upon it.
 * The peace treaty proposed during the cadets' Operation MA Demolition is called the "Fabula Pact."
 * Ignis, an Ifrit Class Eidolon, is a name also seen in the other Fabula Nova Crystallis titles. Ignis is an ability name for Bahamut in Final Fantasy XIII and Chaos Bahamut in Final Fantasy XIII-2, and is a name for a character in Final Fantasy XV.

Final Fantasy XV
Though no longer considered an official part of the Fabula Nova Crystallis series, Final Fantasy XV started its journey as Final Fantasy Versus XIII, counterpart to Final Fantasy XIII and part of the series where the games would share the same crystal lore. When the game was reworked into Final Fantasy XV the developers strove to keep as many elements of the original as possible, and thus Final Fantasy XV shares some of the same elements.
 * In Final Fantasy Versus XIII Etro was the goddess of death who opened "the door" to the afterlife. Though it is yet unknown if this concept is still used in the game, it appears that the goddess in the, and in the , have been inspired by Etro and Yoshitaka Amano's artwork of her.
 * Noctis has been given powers that originate from the crystal, a recurring theme in the Fabula Nova Crystallis games.
 * It has been said that Noctis can see the light of expiring souls, appearing as glimmering crystal shards. This is how souls appear in the Final Fantasy XIII and Type series.