The reason nurses become nurses is because they want to help people. Sometimes when you are in the medical profession for a while you see where the flaws are in the system and you begin to wonder how medical care can be made better. That's what happened with one of the ladies I work with.
After being a nurse for almost 20 years, she felt that one of the main problems with conventional medicine was that doctors were so busy treating diseases and injuries that they forgot to or didn't think they needed to treat the patients. Some of them just don't understand that there is a different, but most nurses know the difference because they spend more time with the patients and their families than the doctors do.
My former coworker would definitely agree with the definition that holistic healers are healers who care for the body, the mind and the soul. That's why she went back to school to study holistic healing.