The YinYang nature of our body and Universe is the foundation on which Tonic Herbalism and Chinese medicine is built. Everything has a YinYang quality, and each herb has a YinYang classification. The 12 meridians, or channels through which energy flows, are specifically where the Qi energy circulates, and how Heaven and Earth stay connected.
Tonic herbalism attempts to assist the body in maintaining a smooth flow of Qi through the meridians.
Yin herbs:
䷁Strengthen and nourish
䷁Provide moisture and nourishment to the substances/fluids of the body
䷁Offer deep tissue-level restoration
䷁Calm and ground
䷁Are sweet and cool in their nature