In Journey to the West, why did Dapeng sculpture with golden wings dare to curse the Tathagata?

In the Journey to the West, the golden-winged Dapeng carving is a demon that is extremely difficult to surrender. He has great courage because he is the Tathagata's uncle. Tathagata had to surrender. It is easy to hand over the lion and white elephant, but it is too difficult to hand over the Dapeng essence. Dapeng Jing completely ignored the existence of the Monkey King and chased the Monkey King to the Tathagata. The book says, "Since the two Bodhisattvas received the white elephant of the green lion, only the third demon stayed put, spread its wings, lost Fang Tianji, soared upward, and turned its claws to catch the Monkey King.

The Monkey King hid in the golden light of Tathagata, and then Tathagata began to practice. I saw, "If the Tathagata knows this, it will flash golden light and turn the magpie nest into a bright red flesh and blood." The devil gave him a sharp claw, the Buddha pointed his hand up, and the devil's wings were on his arm? Stiff. I can't fly, it's on the top of the Buddha, and I can't escape far. It's Dapeng golden wing sculpture. "This process of surrender is extremely strange. There are several points: First, the Tathagata turned his head into a piece of flesh and blood to lure Dapeng; Second, Dapeng is trapped on the head of the Tathagata by the power of the Tathagata. Third, Dapeng was forced to convert, with a big tone, and ignored the Tathagata.

Even if trapped, the Tathagata did not convert easily, but argued with the Tathagata. Dapeng said: "when you are a vegetarian, you are extremely poor and bitter;" I eat human flesh here and get endless benefits! If you starve me, you are guilty. " In the face of this unreasonable provocation, the Tathagata's answer is: "I am in charge of four continents, and countless beings are looking forward to it. I will teach him to sacrifice your mouth in advance. "

Tathagata does not oppress him with his own authority, but induces him with good interests. Seeing that there is no escape, Dapeng can only convert. Here's a question. Tathagata, is there no other way to subdue Dapeng Jing? Why use his own head? It's too risky