(also Caliborn is named after the sword Caledfwch aka Excalibur aka Calibur. Also it's the Welsh named while y'know Lord English. Fun stuff)
One tiny detail people don't talk about is how Skaia is implied to be an already somewhat sentient being and that it can choose to now show certain things to certain people in it's clouds. Which is pretty interesting imo.
Also The Breeze is also kinda implied to be sentient too
there. can you hear it? of course you can’t. but if even you could, it would sound like nothing at all.