¿Por qué moxar Zhi Yin (V 67) puede corregir la malposición fetal?

Many medical works, eastern and western, have described the technique Jiu Fa (moxibustion) of point Zhi Yin (BL 67) (reaching Yin) in order to correct a bad presentation of the fetus and thus facilitate a normal delivery. However, those works do not develop an explanation of the theoretical bases of Chinese medicine that lead to that therapeutic decision, and they do not mention what Nei Jing Su Wen Ling Shu teaches us about which energy path is the one that leads to a correction of the fetal position to allow an eutocic delivery when heat is applied with moxa on the little toe (BL 67). This work, based on classical thinking of Chinese medicine, tries to clarify energy dynamics that explain the therapy choice of applying moxa on point BL 67 to correct a bad presentation of the fetus.