With all your good will to heal people with your magnetism you can do a lot of harm. That is the reason why Hazrat Inayat Khan instituted the service of healing. The fact that it is not just one person is already a help, that they are linking themselves as instruments of the Divine Power of Healing, so that it eliminates a lot of ego. Also, because it is done in a prayerful way, so people are really dedicated to a higher consciousness; whereas, if you're there facing a patient the ego is involved. It is very difficult to get rid of it. And because, as I said, your magnetism may be just too gross for the patient, and you're doing the patient harm.