Happiness is dependent on the fulfillment of needs and the absence of pain. It is like a system check before a plane takes off. If all the components are in order, the overall evaluation is GO! In the case of humans, this means HAPPINESS.
We have two periods: the classical (up to 1900) and the modern. During the classical period, pure mathematics and applied mathematics (physics, surveying, navigation, astronomy) were taught to the general public, advancing their reasoning skills. Mathematics was just like an exercise machine, not important in itself. What was crucial was the result of the exercise, namely mental fitness, which could be applied to other areas. Modern mathematics is useless in this regard. Mathematics now uses an artificial logic (formal, mathematical, or symbolic logic), which is good for computers, but not for humans. In addition, modern mathematics is empty in comparison to classical mathematics. It has lost its value as a mental exercise machine.
Science teaches generalities. Our life, however, is composed of highly specific events. The mental fitness acquired through classical mathematics can be used to deal with the singular issues and circumstances of everyday life.
If one person has one ideology (worldview, “personality”) and the second person a conflicting one and these two people start talking to each other, then the communication will turn into a fight. Communication is only possible if you question your ideology and replace it by the informal logic of classical mathematics.
THE CONSCIOUS AND THE UNCONSCIOUS MIND
The conscious mind is good for relatively simple things. It can, for example, be used for cleaning up the solutions created by the unconscious mind. The conscious mind cannot deal with the complex, ever-changing issues of everyday life. For this, we need the unconscious mind. The unconscious mind needs input that is clear, simple, and free from ideology to come up with solutions.