After scripting my video about the Satorl Sisters (the ones depicted in the Soroal Statues, I had this really cool thought.
Zanza is sealed on Prison Island, and you need to get into Prison Island, and you can interpret this as the Soltnar and Khatorl themselves sealing away Zanza. I find this so cool because of just how badly Zanza wants to be worshipped and remembered, while the High Entia build statues of these sisters instead.
It gets even better, as the Soroal Statues overlook the ceremony - the ones Shulk and co. had to do to get into Makna Forest. It's assumed that the ceremony was there to lead many Half-blooded High Entia to their doom, like Melia with the tomb, ironically futhering the plans of the being Satorl and Khatorl tried to seal.
I don't know if I'm reaching too far here, but is this not the coolest thing?! I haven't heard anyone talk about them, and it's so exciting to wonder what other secrets and lore lies within Xenoblade Chronicles!
-miimii