I went to a memorial service for a friend a few weeks ago. There were a number of speakers, including my friend's family doctor and his Reiki (sp?) therapist. The Reiki therapist was really interesting, and a couple of other speakers also referred to her beneficial work with my friend. She would come to his room at home for therapy when he became too ill to come to her (due to cancer). I don't believe anyone had any ethical difficulties with her speaking.