地 Chi (sometimes ji) or tsuchi, meaning “Earth”, represents the hard, solid objects of the earth. The most basic example of chi is in a stone. Stones are highly resistant to movement or change, as is anything heavily influenced by chi. In people, the bones, muscles and tissues are represented by chi. Emotionally, chi is predominantly associated with stubbornness, collectiveness, stability, physicality, and gravity. It is a desire to have things remain as they are; a resistance to change. In the mind, it is confidence. When under the influence of this chi mode or “mood”, we are aware of our own physicality and sureness of action. This is a separate concept from the energy-force, pronounced in Chinese as qì (also written ch’i) and in Japanese as ki, and written alternatively as 気, 氣, or 气.


Source: Wikipedia