七返还丹

Explanation: See "Seven back to Dan." 　　Source: Li Han virtual "three-car secret purpose" of the three vehicles are, three river cars. The first piece of luck, that little fire of the Zhou Yun afternoon; second operation fine, that is, Ho-Yu Ye, transport water to support him; The third essence and movement, that is the great Jin Zhou Yun congenital mercury, seven returned Dan, Dan also has nine great. ... ... Secret meaning of the three vehicles were kept in the dark, the whole round Manner Mishina, Heaven, Earth, Sansen achievements. "