The elders remind you that your liver (wood) is now in a state of high pressure (diet, staying up late, drinking, etc. are all harmful).
When you meet something satisfactory (fire is the heart), something happy will become a comfortable liver (wood is the liver).
If you encounter a strong kidney (charcoal is black, black enters the kidney), you can live a long and healthy life.
Wooden cross (hospital sign). Half, liver damage is predicted in advance.