Einstein once said: "Energy is an essence of life that forms its existence, fades, restructures its form and then lives again." He also theorized then that all energy has a sound, colour and intensity unique unto itself. This theory has since been proven by more than one quantum physicist.
So now that we know we're working with energy it's important to KNOW that we are all energy. In fact we are made of 99.999 percent energy. Energy is equal information. At the point of conception, the very precise memory for the full growth of physical body up to perfection is available. If there is no genetic disposition then the body has the potential for perfection and illness has no place. When a body is not balanced mentally, emotionally, physically or spiritually then the body is not at ease with self or the environment. Body has been stressed. Stress usually is been caused by inner or outer conflict better said internal or external influence. Stress then affects the memory of the cell and thus a dis-ease is manifested and forms in various illnesses. Physically, mentally, emotionally or spiritually.
So a spiritual healer uses his/her energy body (consciousness) as a channel to receive a pure energy from the divine force. Then she /he passes this energy to re-awaken the original memory of the cell that is been distorted. Healthy energy restores the harmonious flow of energy within the auric field that later will manifest into the physical and will help the healing to take place. Also recognition of the emotional or mental block is the key. This way one can remove the problem for good.
Healing comes in many forms and by using various methods. But the end result of all of these methods is reawakening of the healthy vibration in the cell. Therefore all methods of healing have been found effective. I must add that healing is not used instead of medical treatment and like any other therapy, is complementary to medical treatment.