The qi in qi-arrival have generalized meaning and narrow meaning. When acupuncture was regarded as a treatment

qi in qi-arrival usually refers to food essence

as in effective qi arrival. qi-arrival is the premise of obtaining qi

which refers to the struggling statement between food essences or arrival of healthy qi and pathogenic qi after needling. The prognosis of the struggling between healthy qi and pathogenic qi takes pulse manifestation as important evaluation standard

while needling sensation is a phenomenon that comes from the process of qi-arrival and obtaining qi

including dominant sensation and recessive sensation.