The 6 ki theory, is a brilliant upgrade of Prof. Park Jae Woo to the 5 element theory of traditional Chinese medicine. The first text in Chinese medicine was originated by the yellow emperor, Huang Di in 2,697 BC[i].The light shed by Prof. Park has created a bridge between the concept energetic systems of the ancient world. In meridians the life energy flows along a line .There are 12 pairedmeridians in the left and right half of the body. Every meridian is designated by the name of a solid and hollow organs present in the body. Every human being is born with certain quantity of energy in every meridian. These 12 meridian energies maintain their equilibrium independently or in relationship with other 11 meridians with the rules of Six Ki, Eight Ki Symmetrical and Cross linked relationship termed as Energy constitution. For more details refer to The Six Ki Energy Theory, Illustration Handbook[ii]. Every meridian independently has normal upper and lower threshold of energy. When the amount of energy is within this threshold, it is expressed as “Normal” This state of normal doesn’t produce any symptoms and signs in the patient. Whereas, when amount of energy rises above the upper threshold, it is termed as “Excessiveness (+)” of energy and when the amount of energy goes below the lower threshold it is termed as “Deficiency (–)” of energy. Both these conditions of excessiveness and deficiency, produce disease and discomfort to the patient. “Excessiveness” of meridian is known as Hetero state of a meridian. Hetero state of a meridian expresses symptoms and signs in comparison of deficiency state of a meridian. In excessiveness and deficiency of energy system, symptoms related to body, mind and soul independently or in combination can be expressed.[i] Helms JM. Medical acupuncture In: Jonas WB, Levin JS, editors. Essentials of Complementary and Alternative Medicine. Baltimore, MD: Lippincott Williams & Wilkins; 1999. pp. 340-354[ii] Park Jae Woo. The Six Ki Energy Theory, Illustration Handbook. Smile academy Moscow, 2000.