Tonification (Bu Fa) is a therapeutic treatment that nourishes and replenishes the Qi, Blood, Yin and Yang of the human body when they are deficient or weak.
It may be that one particular organ system requires tonification, or perhaps the body as a whole. From a Daoist perspective, mushrooms generally act as Qi tonics and function to tonify the Lung and Spleen channels, though many are also supportive of other organs like the Liver, Heart and Kidneys.
The Asian medical system has long-held reverence for mushrooms as functional foods and powerful herbs and the first known herbal pharmacopeia in China, the Shen Nong Ben Cao Jing, includes many species of mushroom still known today.
Pictured is the 'Queen of Mushrooms'; Reishi
Captured by the magnificent @smithclaudia