Liver stores the ethereal soul

The ethereal soul is closely related to the liver. The Magic Pivot (灵枢 líng shū) states, That which goes hither and thither with the spirit is called the ethereal soul. It also says, The liver stores blood, and the blood houses the ethereal soul. When the liver fails to store the blood or liver blood is insufficient, there are signs such as profuse dreaming, disquieted spirit, sleep walking, and sleep talking. These signs are regarded as failure of the ethereal soul to be stored.