Why did qi become “energy” in Western translation? What do yin and yang actually describe? Were Wood, Fire, Earth, Metal and Water really five elements? Volume II examines qi, yin-yang, the Five Phases and the relationship between humans and nature, asking where ancient observations meet modern science—and where important questions remain open.

More than two thousand years ago, without microscopes, CT scans or modern laboratories, what did Chinese physicians actually see? Beginning with ancient medical records, Volume I traces the ideas of meridians, acupuncture points and qi, placing traditional observations alongside modern scientific inquiry without forcing one system into the language of the other.