Qi September 18 2014
Point zero of any discussion regarding Chinese Medicine. Qi has no exact translation; it is most usually translated as 'energy' or 'life-force'.
Qi is the instrinsic, motivating principle of all things; and of each thing, being, and component individually. Every individual thing can be defined, simply, by its Qi. That of the body is 'righteous Qi', but we speak also of the special Qi of individual parts, such as Heart Qi or Skin Qi.
Essentially, Qi is the ancient Eastern understanding of the same dynamic recognized by modern physics as molecular and atomic activity. We think the closest translation is 'life'.