In this episode, Jonathan Chang and Jason Robertson remember Dr. Wang on the annual holiday known as "Tomb Sweeping Day"  (清明節- Qing Ming Jie).  In the spirit of remembrance, Jon and Jason reflect on one of Dr. Wang's favorite quotes from the Neijing.  Ling Shu chapter one describes the very nature of  "channels/points [which are] where spirit qi moves, exits and enters [and are] not [the same as] skin, flesh, tendons and bones" （所言節者，神氣之所遊行出入也，非皮肉筋骨也）.