Sun Wukong indeed did not use his physical body to block the attack of the Demon-Subduing Pestle because he wasn't sure if his current physical strength could withstand Manjusri Bodhisattva's Demon-Subduing Pestle, and could only rely on his body technique and martial skills to dodge left and right.
"The prolonged defense leads to failure," especially when facing a master like Manjusri Bodhisattva, who in terms of strength, was much stronger than the Asura Demon King Sovereign Mara Papiyas. After dodging a few times, a cold and sinister smile suddenly appeared on Manjusri Bodhisattva's face. Sun Wukong felt a sense of alarm in his heart and realized that something was amiss. He wanted to change direction and dodge, but it was already too late. The three golden hoops of the Dragon-Escaping Stake changed their trajectory when they were less than three feet away from Sun Wukong's body, swiftly encasing his hands, feet, and torso tightly.
"Peng!"