On the 1st March 2019, South Korea celebrated the 100th anniversary of the March 1st Movement, a mass demonstration of Korean resistance against Japanese Colonial rule.
The Korean flag is full of symbolism and represents the spirit of the nation. The white background of flag means Peace. The red & blue circle in the center refers to the origin of all things in the Universe, Yin & Yang. The blue part is Yin and represents all the negative aspects whilst the red represents the Yang and describes all the positive aspects. Together they represent perfect harmony and balance.
Yin & Yang represents duality, there are many natural dualities, such as good and bad, light and dark, fire and water, expanding and contracting, however as these dualities cannot exist without each other the duality of Yin and Yang is also thought of as an indivisible whole.
The four trigrams at the corners of the Korean flag represent the four classical elements : starting from the top left corner: Heaven, Water Earth & Fire. The flag symbolizes the nation as a whole ; the white background represents the land, the circle represents the people and the 4 trigrams represent the government. All three make-up the essential elements of the Korean nation.
In my book I described the act of courage of the opppressed against the aggressor. For more on this subject please check out my book.