There are two kinds of energy in the body: warm fire energy and cold water energy. When the body is in balance and optimum health is achieved, the water energy is located in the head and the fire energy is maintained in the abdomen. This state is called "Su-Seung-Hwa-Kang." "Su" means "water," "Seung" means "go up," "Hwa" means "fire," and "Kang" means "come down." "Su-Seung-Hwa-Kang" expresses the universal principle that water energy must go up and fire energy must come down.
Ilchi Lee
"Su-Seung-Hwa-Kang" is universal principle for the life activity in both nature and the human body. In the human body, the water energy is created in the kidneys and the fire energy is produced in the heart. When the water energy moves up through the Doc-Mak (Governor Meridian Channel) located in the middle of the back, the brain feels fresh and cool. The fire energy passing through the Im-Mak (Conception Meridian Channel) located in the middle of the chest down into the abdomen keeps the intestines warm.
All these lines are extract of book of Mr Ilchi Lee
Why do humans insist upon differentiating everything, ever since we ate of the grape in Mago’s Castle, or the forbidden fruit in the Garden of Eden? Why do we separate God from humans? Mine from yours? My religion from your religion? My country from your country? Is it so difficult to create this concept of “us” as you and I as One? Can we open up our minds a little bit more to allow the possibility of coexistence in harmony and tolerance? Can we create this new road, the road that the Creator surely would want us to take? The road we are on right now will ultimately lead us to ruination.
Looking back on our various traditions and history, we know that, although the Creator has given us life. He has also given us free will. The Creator has given us the power to utilize nature for our benefits but has not actively stopped our abuses, giving us choice in our actions. The world’s problems lie not in the realm of the Creator, but in the realm of humans. If humanity should perish due to our misjudgments and arrogance, the Creator will watch and observe but will not actively intervene, for He has given us all the tools necessary to make corrections. It is up to us to do the work.