It is a book that deals with capacity to alleviate human pain through the hit. This may sound miraculous but it helps explain some miraculous cures. The interest of the book lies in the ability to relieve people without having to believe in something special, so the skeptics are welcome and need not have grigri amulet precious stone etc ... All these objects are evidence of lack of faith in our healing abilities since returns to external elements. Healing comes from within. Other interest, it is not the healer who cures but the person who heals the healer acts as a conductor wire as the wire. The author does not claim to give us instructions for healing but it gives us a series of clues to put us in the best conditions to enjoy their own experience. He acknowledges that he knows why it happens to heal ... but says it is all capable. So why not?