Healing is not the province of the few - it is the gift of every man, woman and child.
Healing through the laying-on of hands invokes a natural law - that energy flows from the stronger to the weaker. Just as a mother 'rubs better' the graze of her child, so the healer heals by putting healing hands on his/her patient.
In healing, the healer becomes a conscious conduit of power from the great Universal Supply to the person being treated. By so doing, the healer does not actually heal - rather the healer sends energy to the sick person, whose natural healing instincts use it in order to bring about a state of balance - which is healing.
A healing technique, like the King Technique, only works because it enhances this natural process.