Not quite. Isaaru was just adapting the binding ritual to reverse the damage he did when he nearly sent Auron.
Remember what's happened in the last few chapters: -- Auron's lost hope and practically lost the will to go on, which is what turns unsents into fiends. -- He stayed awake for most of 3 days, partly because he was afraid of slipping away whie he slept. -- He got caught in Isaaru's sending ritual and started to dissolve into pyreflies, when Isaaru was sending Shuyin. -- What little of Auron was left fell 20 stories and crashed into the water at the bottom of the Via Purifico, where Lulu caught him.
Auron's soul is hanging onto his physical body by very tenuous threads. Isaaru was trying to bandage his spirit and help him hang on, adapting the same methods used to anchor a fayth in its statue.
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Remember what's happened in the last few chapters:
-- Auron's lost hope and practically lost the will to go on, which is what turns unsents into fiends.
-- He stayed awake for most of 3 days, partly because he was afraid of slipping away whie he slept.
-- He got caught in Isaaru's sending ritual and started to dissolve into pyreflies, when Isaaru was sending Shuyin.
-- What little of Auron was left fell 20 stories and crashed into the water at the bottom of the Via Purifico, where Lulu caught him.
Auron's soul is hanging onto his physical body by very tenuous threads. Isaaru was trying to bandage his spirit and help him hang on, adapting the same methods used to anchor a fayth in its statue.