《黄帝内经·灵枢·九针十二原》
所谓补法，就是顺着经脉循行的方向施针，要轻微，仿佛若无其事，行针导气就像蚊子用尖锐的嘴叮在皮肤上一样，似有似无；在留针与出针时，更要像蚊子叮完皮肤后，悄然飞去，而感觉上好像它仍旧停留在那里那样的轻妙。
补曰，随之，随之意若妄之，若行若按，如蚊虻止，如留如还，去如弦绝。
The so-called tonic method is to insert the needle along the direction of the meridian, which should be light, as if nothing happened. The needle should be guided like a mosquito with a sharp mouth on the skin, with a sense of reality or nothingness; when the needle is left and removed, it should be more like a mosquito biting the skin and flying away quietly, but it feels as if it is still there.