Back when Yi Yun first met Su Jie, he had sparred with Lin Xintong. Lin Xintong had suppressed her strength and although she beat Yi Yun, she admitted defeat because she had used her 'Fairy Maiden Heart Sutra'.
And because of that, Su Jie had left Yi Yun two items. One was the Chi Lin beast's head and the other was a yellow toilet-paper-like talisman.
Su Jie had previously said that the talisman could save Yi Yun's life at a critical moment.
This was Yi Yun's last trump card in the Divine Wilderness. It was also one of the crutches he relied on to risk entering the burning hell.
At that moment, Yi Yun's only glimmer of hope while facing against the Golden Crow species was Su Jie's talisman!
"Old Man Su, Old Man Su, you love to take advantage of people, and you have taken advantage of me. Please do not take advantage of me this time!"