To be a healer means to be a channel, a medium. As a mediator, we need to be aside of judgments. 

The medium phenomena has been broach as a spiritual or religious  point of view, but I think it is time to recognize the medium action as a human capability to access sources of collective wisdom. The humanity has been collecting a lot of knowledge, that we have been incorporating in our collective libraries, why we can not develop ways to improve our capabilities to interact with  this collective knowledge?  

The psychology and the psychiatry has been having a hard time with the "mental illness" and as knowing this kind of sickness beside the medicine has been considered as a spiritual illness. I had the luck to work in a very special clinic for schizophrenics, epileptics , bipolar and additions. We use to treat the clients with natural food, no medicines at all, active meditation groups two times a day, massage and sessions with a medium who were able to be channel of the psychic process.