In my opinion, though, the meaning of self-actualization is not clear enough. Instead, I believe that the ultimate goal for human existence is to control everything that exists, meaning the entire universe. Things will become gbeautiful h after they are controlled. For example, people think that today fs life is more beautiful than yesterday fs because they have greater control over life today than they had yesterday. Otherwise, they would not say so.
Curiosity is only a means to achieve the end, that is, control.
One has to understand a thing before controlling it. Only when the structure of atom is understood can atomic power be controlled. As a result of the natural course of evolution, human beings have only two eyes and ten fingers. By the same token, the human desire to control and be curious is the result of evolution that has been going on for millions of years. Those ape-men that lacked the desire to know and control had died out long time ago.