"This focus on prevention stems from Daoism, one of the pillars of Chinese medicine. Among other things Daoism holds that humans are intimately connected to nature and the universe. Human physiology is like the rhythms of nature and the universe. Those rhythms are constantly in the now, not the future, not the past. When we are well, we are in balance with those rhythms; when we are sick, we are out of balance with them."