Jing, reverence or composure, was taught by Cheng Yi and Zhu Xi as the key to self-cultivation: a steady, attentive seriousness that keeps the mind focused and alert in all activities. It is distinct from jing, stillness, a different word, though both were cultivated.
Reverence
Jing: seriousness or reverent attention, the Neo-Confucian discipline of keeping the mind collected.
Also: jing (敬), seriousness