As science has developed and things have been broken down, atoms have emerged, and when atoms are examined, they are said to be made up of positive protons, negative electrons, and neutrons.
From an Eastern perspective, this fact is so consistent with the theory of yin and yang that even Western scientists have paid much attention to it and many books have been published on its study.
However, because the level of oriental studies they knew was not high, it was just a passing story or was dismissed as a far-fetched explanation.
Professor Han Dong-seok also made great efforts to integrate Western modern science into Oriental studies.
He applied Einstein's theory of relativity to the logic of cosmic development and convergence called fusion, and discussed the nature of energy and the possibility of nuclear fusion, which is still in its infancy. This started from the logic that if his thoughts are true principles of cosmic change, they should naturally be consistent with modern science.


This book deals with the principles of yin-yang and the five elements.
The theory of yin-yang and the five elements is the product of the efforts of ancient philosophers who sought to elucidate the principles of nature and humanity.
Although it was once considered superstition due to the advancement of scientific civilization, many scholars with a sense of purpose are now entering the world of learning, making the future bright.
In fact, the biggest reason why the theory of yin-yang and the five elements has become distant from the world is because of its profound logic and extreme difficulty.
Unlike science, which anyone can understand with a certain amount of study, the theory of yin-yang and the five elements is difficult to understand unless you have reached a certain level of understanding.
It can be said to be more difficult than the realm of pre-study.
This can be easily seen by the fact that not a single book by Professor So Kang-jeol, the pinnacle of this field, has been published in our country.
This book by Professor Han Dong-seok is also notorious for its difficulty.
It was a position that any student of Oriental studies would admire, but would find difficult to approach.
Moreover, in recent times when the Korean generation is ruling the roost, it has become an object of even greater awe.
Accordingly, Daewon Publishing boldly revised the previous edition published 30 years ago to suit the Korean generation, corrected some errors, and retyped it before releasing it to the world.

People live on an ever-changing earth.
The Earth, filled with humans and all things, revolves in harmony with the sun and moon, where yin and yang intersect.
However, they do not deviate from their orbit and revolve according to the unwritten laws of nature.
However, if the sun, moon, and earth lose their order and start spinning around on their own, we will not be able to live on earth with peace of mind.
However, the Earth and the Sun and Moon are just spinning around for the sake of spinning, without any selfish motives.
Nevertheless, humans are still lost in the trap of selfish desires.
Rather, aren't even the most ruthless plants and animals breathing together with nature? Humans, though the lords of creation, are even more stingy than the heartless nature.
This is the only ordeal given to mankind, and although philosophy has spent thousands of years trying to solve this problem, it still remains a natural mystery.

--- p.12