There is a word in the Buddhist scriptures called Wujian, Wujian, which is a terrible situation in hell.
Ah's word is nothing, nose's word is between, it is timeless, it is spaceless, it is the realm of receiving immeasurable karma and retribution, it is immortal and suffers endless torture, so Abi hell is also called "infinite hell".
Because it is necessary to guide people to do good, in Buddhist teachings, Buddha is very kind. In the eyes of mortals, he can tolerate all things that cannot be tolerated. He forgives everyone's mistakes and everyone's harm to themselves. Sakyamuni, who cut his flesh to feed eagles, may have become the earliest idol of the people.
However, people often do not understand the Buddha's sentiments. Human nature is inherently evil. To restrain the evil causes in human nature from sowing evil consequences, it is useless to use pure goodness as a guide. Good and evil are two completely opposite forces. Good and evil cannot cancel each other out because they can coexist. The only way to control violence is to retaliate with violence. Evil is something that Buddha cannot do, so outside of the aura of Buddha's compassion, demons arise. In fact, many times, only demons are the ones that prevent the evil causes that are inherent in our hearts from sowing evil consequences, because the only thing we are really afraid of is demons. Therefore, to restrict the evil in our hearts, there is hell, there is Infinity, and there is demon.
Good and evil cannot cancel each other out because they can coexist. What keeps us from making mistakes is often not what we admire, but what we fear.
In an era where good is preached, fear of evil retribution is also the reason why we do good. In an era where we worship Buddha, demons are often the protagonists who really enter our hearts.