Nowadays, the “five residences and eight palaces” was the most popular and developed training system. Although everyone had their own style of training, none had left out the five residences and eight palaces.

The five residence and eight palaces had various functions and uses; however, the most important aspect was the natal residence.

One could see its importance simply from the word “natal.” Fire was associated with the heart, wood with the liver, earth with the spleen, metal with the lungs, and water with the kidney. They collectively constituted the source of elemental energy. The natal residence was able to store a huge amount of elemental energy, but its most important use was to absorb elemental energy and channel it elsewhere.

During combat, the natal residence was responsible for channeling one’s elemental energy.

During the process of training, elemental energy needed to make a Circulatory Cycle Revolution. The purpose of the Circulatory Circle Revolution was to