 The alchemical process consists in tracing the stages of this process in a reverse sequence, in order to recover the hidden One Breath and return to it.In alchemical language, True Lead (☰) and True Mercury (☷) respectively represent True Yang and True Yin.The Yin and Yang entities that respectively contain these authentic principles are represented by "black lead" (i.e., native lead ☵) and cinnabar (☲).