Yeah, yeah. He kisses the top of Zei's head and says, "So, do we still have time for exposition?"

"...right. That." Aaaand his mod is going down again.

"Sorry. Uh, we don't have to, if you don't want to, it's just..."

"No, no, let's. Let me get this out of the way. Back at the village we were talking about... fayth, yeah?"

"Yeah. You were talking about the Final Aeon, then I... got... distracted."

"...right. Okay."

"I think I'm fine now. Or, well, not fine, but I'm not about to be overcome with grief for all of the people I've lost et cetera."

"You'll get used to it."

"...so fucking reassuring."

"Yeah. Sorry."

"Just, just tell me the thing you need to tell me."

"...right. This is probably heretical, the only people I've discussed it with were Lulu and Kimahri."

"Oh, fun, heretical secrets are my favourite kind of secret."

"I think Auron is Sin."

"Yeah, me too."

"—alright!"

"I don't know how or why. And it... sounded like you had a theory?"

"I do, yeah. We were talking about how the conviction to kill Sin and the emotional bond between fayth powers each aeon, and how the Final Aeon differs for each High Summoner—"

"Oh motherfucker summoners have to turn one of their guardians into fayth."

"Yeah. That's... what I think happens. Summoners have to turn one of their guardians into fayth, the emotional bond they created over their pilgrimage being much stronger than anything you can do by meditating with a person who died hundreds of years ago, strong enough to create an aeon that can defeat Sin. But Sin always comes back, somehow.

"Now imagine you're some kind of spirit thing and your body has just been killed but you have this other incredibly powerful magical construct right there next to you..."

"...you think it's possession?"

"Or a corruption of some kind, something that causes the Final Aeon to become Sin. I don't know. The fact that Sir Auron has been sort of arguably alive for ten years in your Zanarkand suggests something weird is going on, but... yeah. Something like that."

"...wow. So, but you said that's heretical? People don't know this, and just go on a pilgrimage to Zanarkand and then sacrifice one of their closest friends or loved ones..."

"Yeah."

"Lady Yunalesca came up with this? It's a shit plan. Did she know?"