In the Journey to the West, the Monkey King has been invincible in heaven, but why did he ask for help when he met a monster on the way to learn from the scriptures?

This is because it is easier for the devil to fall than to fall. First of all, the Monkey King was a demon when there was trouble in the Heavenly Palace. His strength in the heavenly palace is absolutely first-class, and the worst is one-on-one hit, escape and change. There is no burden. If you hit it, you will hit it. If you can't hit it, you will run. His somersault cloud is too fast for anyone to help. Make noise! Isn't the fairy in the sky awesome? Can't catch me! I'm so angry with you! Besides, their strategic goals are different. The Heavenly Palace is in trouble, even if the fairy fails to catch the Monkey King, the Heavenly Palace will lose. It's a bit like the United States catching bin Laden. As long as bin Laden is not caught, the United States cannot win, but it cannot be said that bin Laden is worse than the United States. ) it's different when you learn from the scriptures. He is a demon, and he must be absolutely sure. As long as the goblin was not killed by the Monkey King, the Monkey King didn't win. And many monsters are also masters. For example, in those days, many immortal mounts were also demons, and they were painstakingly conquered by immortals, just like Niu Wangmo, who had great magical powers. The Monkey King, Pig Bajie, Li Tianwang, Nezha, Brother Jintou, Liu Ding Liu Jia, Patron Galand and donkey kong Qi Xin made great efforts to catch him! The scale is no less than the capture of the Monkey King in Heaven! Therefore, the Monkey King can subdue the demon, but it is not easy to subdue it. At the same time, the mounts of bodhisattvas and immortals obey immediately after seeing their masters, which does not mean that the masters are necessarily much better than the mounts. It is estimated that the immortals have some unique skills on these mounts, just like Tang Priest, Guanyin and Tathagata, and like the Monkey King, they are controlled by iron rings. If the spell is removed, the Tathagata will surely defeat the Monkey King, but it is difficult for the Bodhisattva to subdue him. In addition, when the Monkey King made a scene in the Heavenly Palace, he highlighted the word "noisy". It is not that his power can really overthrow the heavenly palace. When he made a scene in the Heavenly Palace, he didn't even see the jade emperor's face, like many great gods, such as Sanqing (primitive Buddha, Taishang Laojun, Lingbao Buddha) and Yusi (Oriental East Pole Qing Dynasty Taiyi Emperor saved the suffering Buddha, Antarctic immortal emperor and western Taiji emperor). The holy emperor in the East, Guanyin in the South Pole, the mysterious spirit in the North Pole, and the Great Immortal in the Central Yellow Pole and Yellow Horn are all top immortals in the sky, and they will not make a move unless they overthrow the heaven. (Of course, these immortals are super powerful. It should be no problem to beat the Monkey King, but it is really not easy to catch this slippery monkey. No one wants to lose face without absolute certainty. ) the Monkey King's troubles in the Heavenly Palace are naturally noisy, but it is still far from overthrowing the Heavenly Palace.