I rarely see clients for physical ailments. However, once in a while someone comes in with one complaint and in the process I discover the physical ailment.
As I am seeing it psychically, the physical ailment is a configuration of long-held beliefs, responses to many situations over a lifetime. Essentially, many of the problems that arose early, as signals, that something was not right in the person's life, were ignored for one reason or another. The reason usually being that because of some childhood energy the person felt they were powerless to deal with the situation. They didn't deal with the situation and the problem traveled into physical expression.
That physical ailments are a manifestation of mind is widely explored these days. Anita Moorjani's and Dr. Eban Alexander's experiences of going from dying of a terminal illness to being perfectly fine demonstrate this truth. These are just two recent examples of extreme healing. There are many others.
Here you can read about Christine Day, the founder of Amanae Therapy. Christine was told she had two months to live. She had this incredible realization: if she created this disease, she can un-create it. And that's exactly what she did, and that's how Amanae came about.
Listen to "Healing Journeys" from the Monroe Institute in Guided Meditations.