isn?t there one way to sum up traditional Chinese medicine?

Yes there is it's called Qi, and it's probably the most important of all the traditional philosophical principles. 

Qi (pronounced chee is a concept which underpins all of Chinese medicine.  It is commonly translated as energy but it is actually much more than this: Qi can exist in numerous states and forms.  We all know that the body contains energy, providing heat and fuel to different parts of the body.  This energy flows though the body and links the organ networks.  In simple conventional medicine terms energy is the metabolisation of proteins in the body and that without a clear flow of this energy to the organs of the body they will deteriorate and lead to illness.

At Sen, just as we use Chinese medicine to balance your yin and yang, we are simultaneously aiming to ensure a smooth circulation and balance of Qi throughout your body and organ networks.

how are herbs used?