The emergence of philosophy and alienation were almost simultaneous. Philosophical alienation means that the cavemen started philosophical thinking based on the ideas presented by true philosophers, while the cavemen themselves could not open philosophical thinking because they had no experience of the world outside the cave.
For the ancient Greeks, the greatest philosophical alienator was Plato, whose conceptualism was a conjecture about the world outside the cave. Although he proposed the cave metaphor, he was not able to prove it because he himself was a thoroughgoing caveman.
Those who pushed Plato later were also cavemen; after all, they could not understand more than that. They still don't know what existence and the Logos are.
So you are going to understand Socrates from Plato, and you are going south. So why not go from the Cynics and Stoics to understand them? Because cavemen cannot understand them; they belong to the true philosophy. How can cavemen know what "grasping impressions" are? Is it not ridiculous that they take Platonism as the orthodox ancient Greek philosophy?
This alienation also exists in the Chinese civilization, which is the alienation of Confucianism by the science. You cannot understand what ren is from science, and likewise, you cannot directly understand teleology, which has a true inheritance from Confucianism. It is impossible for a caveman to understand true philosophy directly, just as it is impossible for you to understand that "the universe is my mind, and my mind is the universe.
Of course, the problem remains that the true philosophy itself is not perfect. A perfect philosophy must be understood by the caveman, and then alienation will cease to exist. How is this possible? Then it is necessary to resort to poetics, because art is the only factual existence that can penetrate the cave, and by confirming its essence, it can confirm the existence of the cave and thus construct a new civilizational system.