Emptying the Heart: Daoist Alchemy and Neiguan

“The heart is called empty, for emptiness has nothing to┬ádo with impressions already gathered, but with what is going to be received.The heart is alive, and it possesses knowledge; it knows, and from knowing makes distinctions. To make distinctions is to know all parts of the whole at once.” (Xunxi, Jie Bi, 300BC) Wow, if