The acupuncture technique that Mo Wen had displayed was the Yin and Yang Life Invigorating Needle. This acupuncture technique belonged in the mid-range. It could cure hundreds of illnesses and many of the diseases could be treated with this technique.
This was because the profundities in the Yin and Yang Life Invigorating Needle was the production of invigorating life, the combination of Yin and Yang, supplementation of vitality and repairing of the body. When its potential was harnessed, this needle could alleviate any illness.
However, it was because the Yin and Yang Life Invigorating Needle was mid-range that it could have an effect on almost any illness. It also made it ineffective against some persistent ailments. In the face of some drastic and complicated illness, its effects would be next to nothing.