Jing is one of the Three Treasures often discussed in Chinese Medicine and Taoist Meditative practices. The two other treasures are Qi and Shen. The concept is a few thousands years old and most Westerns have not heard of it, so I’m not surprised.

For more information, if you’re interested, you may follow up with Nathan Brine’s “The Taoist Alchemy of Wang Liping: Volume One,” which is a fantastic introduction to Internal Alchemical Arts.