The belief in soul dualism found throughout most Austronesian shamanistic traditions. The reconstructed Proto-Austronesian word for the "body soul" is "*nawa" ("breath", "life", or "vital spirit"). It is located somewhere in the abdominal cavity, often in the liver or the heart (Proto-Austronesian "*qaCay"). The "free soul" is located in the head. Its names are usually derived from Proto-Austronesian "*qaNiCu" ("ghost", "spirit the dead"), which also apply to other non-human nature spirits. The "free soul" is also referred to in names that literally mean "twin" or "double", from Proto-Austronesian "*duSa" ("two"). A virtuous person is said to be one whose souls are in harmony with each other, while an evil person is one whose souls are in conflict.