Having studied the six tissue states, or energetics, in the previous chapter, here those energetics are applied to our marvelous healing herbs with a general overview of the "art and the science to using the medicinal substance in a holistic fashion." (page 64). Matthew Wood provides a very sound argument for "simpling" (using a single herb) and "specifics" (herbs that are suited for a particular energetic imbalance). He contends that a specific remedy, or simple blend, can be determined after one has "isolated the kind, seat, and context of the disease" (page 79). Fascinating, as well as being a remarkably reliable system in my experience.