Yin and yang are the two opposite an complementary forces on which Oriental medicine base the explanation the whole existence. Four are the laws about them. Everything we become in contact has the prevalence of one of these forces. How we manage our nutrition and life style determine our inner balance and our relationship with the outer.
1} All things are a parts of an whole or totality, alla is related.
2} Everything change. Yang will became Yin and Yin will became Yang in a constant state of flow.
3} Yin& Yang are in all things, nothing is just Yin or Yang.
4} in any phenomena. either Yin or Yang will prevail.
Yin and Yang are the opposite forces that together lead to the existence of everything.
Yin is ascribed as the primarily energy in nature.
Yang is complementary opposite, and is referred to the materia.
The development of our physical body since the embrional state in a Yang process [growing getting older]. The development of our sensorial organs [smell-taste-intuition...] is a Yin process.
In order to perceive we must exist : {perception} Yin - {action&materia} Yang
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