Ancestor Bodhi, a strange old man who is the incarnation of "the first bodhi tree in the world", refuses to accept the immortal officials in heaven, and only picks "problem children" such as Kunlun Jade Pimple (Guangyuan), the red-eyed God of War (Dasu), and the stupid young man (Yingjie) who steals his skills. He waved a fly whisk made from the roots of the bodhi tree and said with a smile, "Tao gives birth to one, one gives birth to two, two gives birth to three, and three gives birth to all things." No matter you are a human or a monster, if you pass the chess game he set up and the key to the secret cave, you can enter the Three-Star Cave of the Setting Moon.
But this is not a simple practice of cultivating immortals and fighting monsters: the ancestor's concept of "teaching without distinction" was actually "carried forward" by Hongjun's disciple, Master Tongtian, and he created the Heart-Destroying Alliance to cause trouble everywhere; while dealing with the "workplace difficulties" of Heaven and the "Buddhist schemes" of Lingshan, the twelve disciples were head-on with the Heart-Destroying Alliance, just like a group of "social beasts" crawling around in the workplace of the three realms.
The best thing is their growth: Wukong learned restraint from the "impulsive stone monkey", Hai Rong learned to refuse from the "bad good guy", and Zhitong learned from "death is truer" and became enlightened and adaptable - just like the ancestor said, "cultivating the mind" is not about chanting sutras, but first recognizing "what kind of material you are", just as it is said in the "Tao De Jing" "Those who know others are wise, and those who know themselves are wise".