The heart is the house of Spirit (Shen), which can be seen represented by the Chinese character in the center of the heart above. The word Shen loosely translates to mean spirit, presence, or consciousness. It is one of the Three Treasures of Man and the heart or heart-mind is the source of this energy. On energetic level, the heart-mind is responsible for the regulation of the conscious and psychic mind, which includes: mental activity, memory, sleep, and feelings. Understanding this concept can make it easier to see the heart as the vessel of the spirit and the vitality behind our life force and essence.