by Master Kim Beom O-HENG AND MUDO . In this article we will focus upon the relationship between O-Heng and the human body. Understanding the relationship between O-Heng and the human body can be used for the purposes of medicine and acupuncture. The most important thing to note at the outset is that there is no overall conqueror between the elements. It is also important to remember that categorisations are not absolutely perfect. O-Heng needs to be studied in order to be understood.

The properties of each element of O-Heng are different: Mok (wood) is soft and warm, and its energy is upward. Hwa (fire) is hot, and has an instant explosion then expands. Toh (earth) is agglomerating and sticky, and tries to incorporate others. Keum (metal) instantly incorporates others, and its energy is stiff. Sooh (water) is cold, soft and smooth, and its energy is downward.

The relationships between the five elements themselves are SangSing (supportive) or SangGook (controlling/blocking). For example, fire (Hwa) and water (Sooh) are enemies and have a SangGook relationship. On the other hand, wood (Mok) and fire (Hwa) have a SangSing relationship. It may be noted that, like the relationship between a parent and child, there are two ways of expressing the position of, for example, wood in relation to fire – I am born or I make born. Understanding the properties of and the relationships between the five elements of O-Heng enables an understanding of the constitution, body type and character of individuals.

Body Tpes

In the human body, O-Heng energy comes from O-Jang Yuk-Boo. O-Jang refers to the five ruling viscera: the liver, heart, spleen, lungs, and kidneys. Yuk-Boo refers to the other six ruling internal organs: the gall bladder, small intestine, samcho (pancreas – 3 parts of the body), stomach, large intestine, and bladder.

Each of the five elements of O-Heng have relating O-Jang and Yuk-Boo: Mok (wood) relates to the liver and gall bladder. Hwa (fire) relates to the heart, and to the small intestine and samcho. Toh (earth) relates to the spleen and stomach. Keum (metal) relates to the lungs and large intestine. Sooh (water) relates to the kidneys and bladder.

By studying and understanding the relationship between O-Heng and O-Jang Yuk-Boo, illnesses can be detected by examining changes to other parts of the body. Weak or damaged O-Jang Yuk-Boo, circulation problems and pregnancy can all be detected by feeling an individual’s pulse.

Cravings for a type of taste also relate to the health of an individual’s organs: When the liver is weak or fatigued, the individual desires sour. When the heart is weak or fatigued, the individual desires bitter. When the stomach is weak or fatigued, the individual desires sweet. When the lungs are weak or fatigued, the individual desires spicy. When the kidneys are weak or fatigued, the individual desires salty.

However, eating too much of a certain taste results in illness and damage to the relating organ: Consuming too many sour items results in damage to the liver. Consuming too many bitter items results in damage to the heart. Consuming too many sweet items results in damage to the stomach. Consuming too many spicy items results in damage to the lungs. Consuming too many salty items results in damage to the kidneys.

Damage to one of these organs results in physical changes throughout the body. For example, the liver controls the muscles. Therefore, when the liver is damaged or weak, the muscles become weak. The individual looks different and the tongue becomes discoloured. O-Heng energy shows in the face. So that, damaged, weak or fatigued O-Jang Yuk-Boo can be detected by looking at an individual’s face and eyes. Different colour eyes relate to different organs. For example, red eyes relate to a weak liver. Oversized or undersized O-Jang

Yuk-Boo can also be detected in the face. For example: If the liver or gall bladder is big, the face is long. If the heart, small intestine or samcho are big, the face is triangular (with the flat base at the top). If the spleen or stomach is big, the face is round. If the lungs or large intestine are big, the face is square. If the kidneys or bladder are big, the face is triangular (with the flat base at the bottom).

By looking at the size and shape of an individual’s face, the size and health (whether good or bad) of each O-Jang Yuk-Boo, as well as which of the O-Jang Yuk-Boo are vulnerable to illness, can be diagnosed, without surgery or other intrusive procedures.


When one of the body’s O-Jang is weak or fatigued, energy is emitted via a different emotion: When the liver is weak or fatigued, the individual feels negative and angry. When the heart is weak or fatigued, the individual is giggly and laughs for no reason. When the spleen is weak or fatigued, the individual thinks deeply. When the lungs are weak or fatigued, the individual feels sad. When the kidneys are damaged, the individual feels nervous and scared.

Vice versa, if an individual possesses too much of an emotion, the relating O-Jang will be damaged: Too much anger damages the liver. Too much giggling and laughing damages the heart. Too much thinking damages the spleen. Too much sadness damages the lungs. Too much nervousness and fear damages the kidneys.

Individuals can be categorised according to their energy, blood group and character: Mok A Mok person has group O blood. Persons with group O blood favour light and bright colours, such as yellow. The symbolic colour of the element Mok is blue. Mok also relates to the start of spring and the character of a Mok person is like a seed sprouting from the earth. Like a seed sprouting straight up, their energy and character is pro-gressive. A Mok person wants to work harder and does everything without delay. They are suited to doing lots of study, and to teaching and other higher professions. Unfortunately, without much education, some people may use this kind of energy in the wrong way. On the negative side, Mok people tend to start many jobs without finishing them. The character of a Mok person is good. They are warm and kind, and Mok people are popular people. Yet, when things go badly for them they are supported by Keum and Sooh people, with whom Mok people have a good relationship.


A Hwa person has group B blood. Persons with group B blood favour red colours. The symbolic colour of the element Hwa is also red. Although a fire may sometimes appear blue or yellow, it is essentially red. Hwa also relates to the summer and a Hwa person is like a developed tree with full branches. If you look at a fire, it is really elegant and bright. Hwa type people are strong, passionate, independent, charismatic and very friendly. They have a clear-cut character. They are pioneering. By always being the first to do something. They wear fashionable clothes, but are also conceited. In terms of their relationships with others. They are stubborn. They have a one-sided view and think that they are always right. When they think that they have lost their battle, they react angrily, like a fire burning everything. When a fire burns out.

There is nothing left over. Likewise, for a Hwa type person, when an argument is finished, it is finished, without backbiting. Hwa people have a strong character but tend to be lonely, without support from anyone.


A Keum person has group AB blood. The symbolic colour of the element Keum is exactly white. Keum also relates to autumn. Like metal. Keum people have a really sharp character. Such people are good at pinpointing if anything is wrong and they are suited to investigative work. Keum people are very careful, but they are also timid and lack courage. Their character is generally calm. However. Keum people save something inside, until there is an explosion. They react and get angry suddenly. Others find it difficult to make friends with a Keum type person. As

Keum people have very cold characters. However, when a Keum person makes a friend, they are deeply warm. Just as, for example, an axe (Keum) controls and affects wood (Mok). Keum people control Mok type people, in the sense that they offer them good advice.


A Sooh person has group A blood. Persons with group A blood favour colours such as blue and black. The symbolic colour of the element Sooh is black. Sooh also relates to winter. Sooh looks like an explosion, but it is really moving down one path. Everything develops and returns to the beginning. The character of a Sooh person is reflected in their home. On the negative side, for example, a Sooh person would ensure that rooms such as the bathroom and dining room are neat and tidy for visitors, but keep the junk of their house in their private rooms. Sooh people are intelligent. However, they have a complex about their type. Sooh people are weak and engage in a lot of thinking. They are perfectionists. They want everything to be absolutely correct and they do not like to harm things. They want somebody to protect them, including for example God.

Sooh people have an internal character rather than external character. They are the complete opposite to Hwa type people. They prefer wearing normal’ clothes, such as casual jeans and a T-Shirt. In winter, a Hwa type person prefers to still wear skimpy clothes, whereas a Sooh type person prefers to wrap-up. Sooh and Hwa people cannot get along with each other. They argue because they have such different characters. A marriage between a Sooh type person and a Hwa type person is likely to end in divorce.


The symbolic colour of the element Toh is gold/yellow. There is no blood group related to Toh. The energy of Toh is neither positive nor negative, it is an exact combination.
So too. The character of a Toh person does not fall down on the side of any of the other categorisations, it is perfectly balanced. An individual can train for Toh by following JungDo (the middle way). JungDo can be practised via martial arts training. The Duk Moo Academy endeavours to achieve Toh within the UK. The UK Duk Moo Academy was established on the correct path, however attention from others was not as forthcoming. Since then, the Academy has received a lot of interest. Now, by expanding and working together with other martial arts, the UK Duk Moo Academy is on the way to achieving Toh in the UK.

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