Spiritual healing is almost unknown territory to me because I'm so healthy that I haven't really tried it out.
I know that the placebo effect cures more diseases than any medicine does and it could be considered a form of energy healing.
Here is the closest I've ever come to faith, or pranic, or psychic healing. As I got on a bus to go to a party I had one of my worst ever headaches. If that kept up I would hardly be the life and soul of the party! So I tried a technique that might be something to do with yoga or other form of pranic healing.
I closed my eyes and covered them with my hands so as to see only blackness. I used yoga breathing (in four seconds, hold 12 seconds, out 12 seconds, repeat) to calm myself and visualized looking down a dark well. I imagined dipping up the pain from a sort of pool in my head (it doesn't have to be realistic) and spooning it down the well to disappear.
As the pain lessened I imagined each breath pouring energy and vitality into my chest, making me like a Van-der-graf machine charging up ready to shoot off sparks in every direction. By the time I got off the bus I was bouncing along, without a care in the world.
Healing with the mind can take many strange forms, from the traditional healing touch of faith healers to crystal healing, to hypnosis. I strongly suspect that a faith healer will use the placebo effect to cure you. I may be wrong, but I don't really care as long as it works.
Using the mind to heal in a way that I do believe in is a sort of self hypnosis I suppose. It uses the power of visualization. A child cured his cancer by visualising the cancer as Western baddies, and he went round shooting them all with his six gun. A tactical expert imagined the tactics that his army used to outmaneuver the cancer army of cells. It didn't really matter what they visualized - the spiritual healing worked for them.
One thing I do believe in is controlled breathing and relaxation. Where better to do it than in a healing garden.