What kind of "heart" do those crazy people suffer from?

Those "crazy people" in the street are mentally ill. Schizophrenia is a "madman" after it is serious. The inner world of "madman" is very different from ours. You speak very well! They are out of the world, sometimes completely immersed in their personal world. Let me elaborate.

1 mental patients have no "insight". The so-called "self-knowledge" is completely "confused". I don't know what my name is, what age I live in, whether I am a man or a woman, and so on.

they can't recognize this kind of ignorance! They also think they know everything! This is different from normal people! Some old people are confused and don't know their name and age. Generally, they know that they are old, but they are confused. However, people with mental illness don't think they are confused at all! Think you are very normal!

for example; In a mental hospital, there is a patient with mental illness, that is, a "madman". She squats by the gate every day. With an umbrella. The doctor wants to know what's on her mind. So, the doctor squatted with her every day, holding an umbrella. After two months, the "madman" asked; Doctor, are you a mushroom, too? "Crazy" is very strange. He thinks he is a mushroom, but he is very conscious that the doctor is wearing a white coat.

There are many jokes about "crazy people". You can search in Baidu; Jokes of mental patients. There are many, many.

2 mental patients, that is, "lunatics". Their second symptom is "hallucination or delusion". This kind of "illusion or delusion" in the eyes of mental patients is "crazy". This is real! Is their real world. They can live in the Tang Dynasty, and even they are God, Japanese imperial army and so on. These are so real. They have never lived in real life (since they got sick). Therefore, the "madman" crime is not criminally responsible. When one day. They feel confused, and the world they live in is so chaotic! At this time, it is time for them to return to normal.