How Terastallization symbols (and symbolism) are around all the Paldea region and the game.
Let's start with the fact Tera is said to have a huge link to Paldea's soil (not to mention the theory about
Paldea itself being an ancient, giant Terapagos) and, most importantly,
Tera's symbol is a 6-tip star, which
, without going through what it might reference in terms of IRL things, ressembles several other things in-game:
it looks like a turtle (Terapagos); like literally a star (hinting at its space origin, given how it is implied to have come in a meteor that would've impacted on Paldea 2 million years ago);
like a compass (which matchs the exploration theme of the game, the Treasure Hunt and stuff, and happens to be the
official symbol of the Paldean Pokémon League & E4, as well as
Naranja/Uva Academy's shape as seen from above); and, of course, a flower (Glimmora's 6 petals and
dex entry clearly references this symbol and phenomenon too, respectively). Some even pointed out it also
has some similarity to the Ultimate Weapon (as both are inspired by flowers as well) and we shouldn't forget that, while obvious, it is heavily featured on Terapagos' shell as well as
Tera Orbs themselves.
Not only all of this, but look at the special effects/VFX that can be seen during Terastallization activation: from
Terapagos' cry every time a Tera is triggered to
the 6-tip stars (looking just exactly as the Tera symbol) which appear whenever Tera Blast or Tera Starstorm are used. Brightness seems to be really related to Tera, as it represents a treasure that glows. It is hinted by Geeta several times and we all know she was the main responsable for the Tera Orbs distribution (not invention though) and we can see Tera Crystals glowing with some stars like the Tera symbol. What's more interesting is, whenever you go to the Area Zero,
there's some bright particles around everywhere which also remind us that place is the origin of Tera.
Because of all of this, I'd say this mechanic is really well implemented in-game in terms of art, and I'd also like to add that attention to detail in SV is way more interesting than it seems at a first glance. Even if the lore around this mechanic is still hidden and unexplored, I like it and I'd say, more of this, GameFreak.
EXTRA thing:
Now it's time for some weird stuff (just in case this hadn't sounded like a crackpot theory already!). What if Tera symbol also made a reference to
quasars*? Think about it: quasars are quasi stellar objects which constitute a disc around a giant black hole (in fact there's some statues
that may reference this in Artazon). The Area Zero (the hole at the center of
both Tera's symbol and Paldea, provided the Tera symbol also referenced Paldea) is quite a black hole, at least, metaphorically: at the end of the day, no one had successfully escaped from it once they were inside of it, except for the Area Zero Expedition Team from 200 years ago and the most recent researchers after Heath. But everyone felt an otherwordly desire to reach its depths, like if the black hole pulled them; not even the professor was able to escape the infinite curiosity that ultimately led them to their demise...
*That logotype can be seen
in the Pokémon Legends: Z-A reveal trailer from February.