After returning from the Buddhist scriptures, Sun Wukong was defeated by the Buddha in a fight, but the golden hoop never disappeared.
Tathagata: The golden hoop has been removed.
Three Realms: Buddhism is pure.
Only Brother Monkey knew that the thing was still on his head, getting tighter and tighter and more and more painful.
Until an accident, he heard a voice coming from the golden hoop:
"Don't pick it off, I'm helping you preserve the memories of those years."
"Do you really think that studying scriptures is a meritorious deed?"
If the golden hoop is not removed, the truth will never be destroyed.