The 5 functions of Qi :
Acupuncture mobilizes the patient’s own energy to enable him to restore the balance of yin and yang and regain his health .
On insertion of the needle the patient may experience a very slight tingling or swelling sensation or a very mild electric discharge. This is caused by the mobilization of the energy.
This sensation comes and goes in a flash.
The Chinese often use descriptive images to portray the flow of Qi as in the image of the river and its tributeries where the water flows freely. Likewise the energy in the meridians should flow with the same fluidity.
The meridians are the channels through which energy flows; in the image above the water represents Qi.
The river and its tributeries represent the meridians.