Boom!
On Aaron's body, the strand of entwined curse seemed to vanish like a snowflake encountering the sun.
Immediately after, a large amount of "Power of the Secret Source" poured in, performed a "Purification," and then it seemed unable to find any other targets in his body, so it went full circle and followed the mysterious connection between flesh and spirit, returning to his spirit form.
"Sure enough..."
Aaron sighed: "The rank of the 'Power of the Secret Source' is too high; at this point, I can only utilize a tiny bit of it, just like ancient people couldn't make perfect use of oil, but could burn it as a fire... It's the most inferior and wasteful method... Even so, I can't make my body master it."
This was the same reason why, a thousand years ago, he didn't grant the 'Power of the Secret Source' to his believers and then let the believers sacrifice it to him.