In his personality theory, he believes that human psychology is divided into three parts: superego, self, and self. superego is usually composed of moral judgment and values, I am a kind of human desire. I am between the superego and me, coordinating with me and the superego can neither violate social moral constraints nor be too depressed. what corresponds to superego, self, and self is his Division of Human's psychological structure. Based on this division, he proposed the three ego of personality, he believes that, just like an iceberg on the sea, only a portion of people are revealed, and most of them are unconscious. To some extent, most of them determine the development of people, therefore, freuch has devoted his energy mainly to unconscious research on people, which has also been criticized by people later. I think the two pictures below can illustrate his theory very vividly.
