 Meditation practices focused on the principle of Unity are known as “guarding Unity” or “guarding the One” (shouyi), an expression analogous in meaning to “embracing Unity” (baoyi) found in the Daode jing (sec. 10 and 22). In his famous speech to the Yellow Emperor, recorded in the Zhuangzi, Guangcheng zi says, “I guard this Unity and thus abide in this harmony” (ch. 11; Watson 1968: 120).