[She might have been a little frustrated because she had been forced to discuss it at trials and meetings already, but at the same time he seems to be asking in a context of genuinely trying to know her as an individual person and not just judge her decisions. It's... nice.]

The term shaman is used because our core ability is communion with spirits. Some call us mediums or channelers as well... It is not just ghosts, however; my enemy uses a fire spirit for example.