Ultimate Pokémon Horizons fan theory: WHAT IS RAKUA AND WHAT IS RAKURIUM OF ALL THINGS!!! ULTIMATE SPOILER WARNING!!!
Hello guys, Star-Arcana here and I wanna posit my best theory on Pokémon Horizons best and greatest mystery in the storyline so far:
Rakua is the ancient Pokémon Paradise of fables and legends, according to Lucius and many others characters both in the past and present. It's a mythical paradise on top of a mountain, or many mountain? However it is ultimately geographically speaking, to us, currently unknown, only that it took an overseas adventure to get there with Rayquaza and the others guiding Lucius and his friends. It exists really as Lucius and his friends believe, and is a lush, green enviroment with a lot of Pokémon there, alongside them legendary Pokémon in great numbers,too. Like for instance a trio of the Legendary Kanto birds, Latios and Latias, and even a Terrakion and a Virizion, all being happy, enjoying the tranquility and peace of Rakua. Basically the most bountiful place on earth, a true Garden Eden. Gibeon,Rystal and Lucius fond that place to be truly beautfiul, but also found about it's most benefactory boon , and most dangerous curse: Rakurium!
Rakurium is given this name by Gibeon, due to being from Rakua. Also known by the Explorer's own company Exceed as "eternal blesssing", Rakurium is a rare, pink ore found in Rakua. It is the source of this place bounty, and the reason why so many legendaries exist there. It's a constantly renewable energy source that when faced with force, rapidly expands and increases in size and power. When unearthed from the ground via force, it begins to renew itself and create more clusters of itself. Basically an infinite expanding matter with near endless power.
It also possesses the ability to enhance the growth, longlivety and strenght of plant-life, as seen with the many large trees and sudden growth of them in various places.
With Pokémon, it enhances their powers, when they get exposed to it's gas form, allowing Spinel's Umbreon to one-shot Ceruledge the one time on Glaseado Mountain.
Lucius and Gibeon as humans lived via Rakurium's "eternal blessing", long lives with their youth preserved, as seen with Lucius for instance in the trailer for the end of the Rakua storyline, while Gibeon, being exposed to less Rakurium, only aged slightly.
However that power Rakurium holds is beyond a shadow of a doubt, VERY dangerous!!!
While it can enhance the growth of Flora, it can also due to overexposure, destroy it and leave only a barren wasteland surrounded by the pink mist of Rakurium.
That Pink mist also turns Pokémon hostile empowered by it, who would have been otherwise peaceful without exposure to that gas. Also in addition to all of this, Rakurium's ever expanding potential as renewable, even limitless power, is described by Lucius and Rystal soo dangerous and powerful, that if it's continuing to spread, it can easily overwhelm the entire world, devour it and destroy it due to it's infinite potential of power and growth. Rakua is insanely dangerous and rightfully feared and unfortunately desired by the avaricious Gibeon.
However Rakurium has a natural counter:
Terastal energy, especially emitted by the Legendary Pokémon, Terapagos, who is said to be the origin of Terastal crystals and it's power. As seen in the same episodes where Pagogo, Rystal's and now Liko's Terapagos, came in contact wiht Rakurium, it not only neutralizes it's effects, it can absorb and even empower itself with it, without going feral. Spinel thinks these powers are opposed, but I disagree, and I think they are connected to one another, in fact, I believe that...Rakurium and Terastal Energy are the same element, but diffrently charged!
Tera crystals and Rakurium theory!!
Due to the exchange of effects Tera Crystals and Rakurium have to one another, I assume they are one and the same material, or at the very least, related to one another. I am no chemist, so I have not the highest authority to speak intellectually on such a topic, so please feel free to correct me on the science, if I am wrong.
So, I assume that due to diffrent enviroments and other factors, Tera Crystals change to Rakurium and vice versa and due to this share this connection. Tera Crystals allow for the Terastal phenomenon in which the energies can change the type of a Pokémon or reinforce the power of an existing type. The Pokémon Terapagos, as a being made of Terastal power, can even attain the power of all types in the form of it's Stellar type containing each and every single of them, especially seen on it's shell having the symbol of each Pokémon type. In addition to this, Terastal energy is strong enough to even open the doors to past and future timelines, which brought the Paradox Pokémon to Paldea's great Crater. Some say Terastal crystals are not so much bringing these Pokémon from diffrent timelines and time periods, but also perhaps create these Pokémon based on expectations of others and even created these beings. Anyway Terapagos is Pokémon with powers only few Pokémon posses. The power, as the name implies, is deeply connected to that of the cosmos, perhaps it IS the very power of the cosmos. Only one Pokémon is said to be behind the powers of the universe, in fact, it CREATED it! Arceus the creator god of Pokémon according to legends, uses the plates to give it power of all types, and perhaps the plates are what allowed the Pokémon to create the universe with it, as Pokémon Legends Arceus implies told us, when the Universe was created, it's shard became plates...but what if the shards didn't all became plates and instead...something else!
Terastal Crystals and Rakurium are the building block of this universe, and all living Pokémon!
If true, this is the biggest lore upgrade since gen 4, and I wanna explain why I believe that. Typings are important in Pokémon, they give the Pokémon power and as Arceus holds with it's plates the power of all types, it clearly means that whoever has power over all types is a cosmic being, because the power of the cosmos, IS THE POWER OF ALL TYPES. As established, The universe's fragments, the star dusts created the plates with the types, and the power of these plates are within Pokémon, a.k.a their typings. The power of the universe is therefore the power of the types, and as the Stellar type is all times in unision, it must be the original type from which all originates, hence Stellar type...so Tera Crystals are the prima materia of the Pokémon world. When changed however into Rakurium, it vitalizes organisms like humans, plants and Pokémon,perhaps even affecting Prokaryotes, the first organisms. So I think this happened back then in the prehistoric past of Pokémon!
Pokémon's origin story Nr.3: A Meteor brought us Pokémon!
According to lore, Paldea's Crater was formed a millions of years ago, with the cause being unknown, but given how large the crater is, a massive meteor crashing on earth would have allowed for the creation of such a massive crater, like the one that ended the Dinosaur Age. So i assume a massive Meteor with Tera Crystals and crashed in Paldea and scathered across the world many of it's shards, with Kitakami having massive amounts of Tera Crystals there. However some of the Tera Crystals became Rakurium due to the sudden change of enviroment or were perhaps were within the Meteorite that brought Tera Crystals, and were changed prior. However both meet at one place with enough quantities to infuse with the other, while surrounding the smaller organisms that existed. These organisms fed of the Rakurium and Tera Crystal combination and became the first Pokémon, the origin of all Pokémon, Mew. As Psychic is the closest to the power of the cosmos, naturally the first Pokémon must have been a psychic type, as most of the Tera crystals were converted into Rakurium and only a small portion of Tera Crystals gave Mew the power of Psychic typings, but also the power to learn all moves as the origin of all Pokémon. With Arceus having created the universe, so did he created the Stardust that contains Tera Crystals, which in turn contained the power of the cosmos, and with some of it converting into Rakurium, landed on earth, both of it forming the building blocks for Pokémon's existence as a lifeform and thus being the missing link in the history of Pokémon's creation.
Terapagos could however be born sorely from Terastal Energy in Paldea, and being thus the personification of the very power that created the cosmos, and is the cosmos, basically being the relative to the first Pokémon and being therefore, amongst the first Pokémon in existence alongside Mew.
Speaking of Mew, with it's origins being well known, thus the location of Rakua is well known, and THAT is the final piece of evidence I super effectively use to make my final theory:
Rakua is in Guyana and Pokémon's Garden Eden!!!
Guyana is a country within the real world, it is in South America, both of which exist in Pokémon. Mew is said to originate from Guyana, as it was first discovered there, so if Rakurium and Tera energy created Mew, then that means that Rakua IS in Guyana, a place where mountains do exists, with flat-plateuas, similiarly shown in the trailer:
Rakua is said to take 100 days and night on foot from Paldea's center, but as Rystal said, they were overseas on their way to reach it, and did so, because Rayquaza helped them, meaning they first have to cross the wide oceans, and with Paldea being the based on the Iberian Penninsula, it makes sense for an overseas travel to end in South America, a place that Spain historically visited, and saw a lot of conflict due to the avarice of the explorers, in this case Gibeon and his reformed group, not the OG Explorers under Lucius...meaning he can be see as a small allegory for the Spanish's greed and colonization of places with rich resources, though that is a bit of a stretch perhaps, since that would be a hella lot of implications.
But my post isn't about this, it is about the fact that Rakua is the origin place of all Pokémon as we know them, thus being the Garden Eden of this world...with Arceus as god creating the universe, and life being created via Meteors carrying the building blocks, that being Tera Crystals and Rakurium, and forming Rakua, the Garden Eden from which the first Pokémon came from, and spread from there!
This makes Gibeon's Zygarde a perfect choice as this story's villains ace, since a snake tempted in the real world's eden humans to cost from forbidden fruits, but Lucius and Rystal resisted that temptation, Gibeon did not, and thus the original sin of greed created tragedy and evil within Horizon's world of Pokémon.
Also it would fit with the timeline from which Lucius originated, since based on our world, the search for Eden began around that time, and while we found no Tree of Knowledge, we found the place where it was based on and enriched our understanding of the world...btw that place is Mesopotamia, modern day Iraq, Syria and Kuwait e.t.c.
So based on the idea that several humans in real history set out to discover new things and new lands, Lucius's story being based on proving the existence of an actual paradise means that this story really is about discovery, but not necessarily discovery of places, but of ourself. Lucius and Rystal were heroes who respected and loved that world, Gibeon does not and needs to be stopped, especially with his insane desire for more Rakurium and even caring nothing for this world's safety, as thr trailer made clear, he would even see it die to get Rakurium. So Liko, Roy, Dot, Amethio, Friede and Lucius have to stop Gibeon from defiling the place of creation!
Conclusion: Rakua and Rakurium is Garden Eden and the Clay of Pokémon! Terastal Energy and Terapagos being part of this a well!
So what do you think, a cool theory or not? Tell me in the comments below!