五运所化

Five Yun mechanism

甲己化土如甲己之岁，以土运统之，馀同推：乙庚化金丙辛化水丁壬化木戊癸化火

(This paragraph is not translated)

五行本体受病相传为病

The disorders of the Five elements and the disorders passed from other element:

天地化生五行，其中不无偏盛也。盖五行各秉一脏，各得一气，各主一方，各司一令，各有所生，各有所化，各有所制，各有所害。

When the Universe and the earth develop the Five elements (Wood, Fire, Soil, Metal, and Water), each element represent one direction of the whole balance system. This is because each element represents and associates with one organ in the body. Each holds one organ Qi, governs one side of the space, functions one function. Each is born from another element and each gives birth to another element too. Each is suppressed by other element and each suppresses other element too.    

所以东方生风木，司春令，在人为肝，肝气不舒，则发而为病，病有盛衰。

For example, the east side gives birth to Wind and Wood. It governs the spring. It is associated with the liver in human body. If the liver Qi is depressed, it will cause a disease. Some disorder belongs to overwhelming and some belongs to weakness.

南方生热火，司夏令，在人为心，心气不舒，则发而为病，病有盛衰。

The south gives birth to Hot and Fire. It governs the summer. It is associated with the heart in the body. If the heart Qi is depressed, there will be a disease. Again, the disease can be either a overwhelming or a weakness condition.

长夏生湿土，主四季，在人为脾，脾气不舒，则发而为病，病有盛衰。

The summer gives birth to Wetness and Soil. It governs the four seasons. It is associated with the spleen in the body. If the spleen Qi is suppressed or depressed, there will be a disease. With the same way, the disease can be either overwhelming or a weak condition. 

西方生燥金，司秋令，在人为肺，肺气不舒，则发而为病，病有盛衰。

The west side gives birth to Dryness and Metal. It governs the autumn. It is associated with the lung in the body. If the Lung Qi is depressed or suppressed, there will be disease. The disease can also be either a overwhelming or a weakness condition.

北方生寒水，司冬令，在人为肾，肾气不舒，则发而为病，病有盛衰。

The north side gives birth to Col and Water. It governs the winter. It is associated with the kidney in the body. If the Kidney Qi is depressed or suppressed, there will be disease. The disease can also be either a overwhelming or a weakness condition.

此五行本体之为病也。

The above is the introduction of the disease due to each element among the five elements in the body.

而更有母病及子者，如金病而移于肾是也；子病及母者，如肾病而移于肺是也。

The relationship among the five elements can be a mother-child relationship, husband-wife relationship. The Liver (the Wood) is the mother of the Heart (the Fire). The Heart (the Fire) is the mother of the Spleen (the Soil). The Spleen (the Soil) is the mother of the Lung (the Metal). The Lung (the Metal) is the mother of the Kidney (the Water). The Kidney (the Water) is the mother of the Liver (the Wood). If the mother has disease, the disease can pass to the child. For example, if the Lung (the Metal) has disease, the Lung disease can be passed to the Child organ, the Kidney (the Water). If the Kidney (the Water) has disease, the disease can pass into the child organ, the Liver (the Wood).

有妻病而乘于夫者，如土病而传于肝是也；有夫病而及于妻者，如肝病而传于土是也。

There are also a suppressing or a helping relationships in between. For example, the Spleen (the soil) and the Liver (the wood) is a wife and husband relation ship, since the Liver (the husband) suppresses the Spleen (the soil). If the Liver has a disease, the disease can pass into the Spleen. This is the husband disease passes to the wife. On the other side, if the Spleen has disease, the disease can also pass to the Liver. This is an example the wife (the Soil) disease passes to the husband (Liver).

有因相生而传为病者，如金病传水，水传木，木传火，火传土，土传金是也。有因相克而传为病者，如金病传木，木传土，土传水，水传火，火传金是也。学者能留心于此，而治病便不难矣。

A disease can pass to another organ due to the mother-child relationship. For example, the Lung disease passes to the Kidney, the Kidney disease passes to the Liver, the Liver disease passes to the Heart, the Heart disease can pass to the Spleen, and Spleen disease passes to the Lung.

A disease can also pass to another organ due to suppressing relationship. For example, the Metal (Lung) to Water (Kidney), from Water (Kidney) to the Wood (Liver), from the Wood (the Liver) to the Fire (the Heart), from the Fire (the Heart) to the Soil (the Spleen), from the Soil (the Spleen) to the Metal (the Lung). If the readers pay attention to understand this, it would not be so difficult to treat a disease.