Incarnations are creatures who have a physical, non-living body joined to a soul. They may be purposely created by people, such as mummies who house the ghosts of beloved ancestors, or they may be the naturally arising quintessence of a place, element, or concept. It is often possible to destroy the body, but if the incarnation is naturally arising, then eventually a new incarnation will arise which may share some of the memories and abilities of the previous ones. Natural incarnations cannot be killed since they're not alive, but they are susceptible to destruction, either by destroying the concept that they're incarnating or by severing the connection between their body and their spiritual energy. PCs can use Physics to interact with Incarnations.