BIOM is a metaphor for a balanced, healthy human body.
Balance is a foundational concept in the ancient Chinese way of looking at the world.
We're all vulnerable to some imbalance. We're born with certain genetics, and often there are certain organs or parts of our body which are weaker than others. When your body is stressed or attacked it is often your weak link that's most effected. For instance, you may have a pattern of getting colds when you are stressed. Maybe, every time you fly on an airplane you catch a cold afterwards.