Excerpted from http://en.wikipedia.org/wiki/Ho%CA%BBoponopono
Ho'oponopono (ho-o-pono-pono) is an ancient Hawaiian practice of reconciliation and forgiveness. . . "Ho'oponopono" is defined in the Hawaiian Dictionary as "mental cleansing: family conferences in which relationships were set right through prayer, discussion, confession, repentance, and mutual restitution and forgiveness." . . . Ho'oponopono corrects, restores and maintains good relationships among family members and with their gods or God by getting to the causes and sources of trouble. Usually the most senior member of the family conducts it. He or she gathers the family together. If the family is unable to work through a problem, they turn to a respected outsider.
The process begins with prayer. A statement of the problem is made, and the transgression discussed. Family members are expected to work problems through and cooperate, not "hold fast to the fault." One or more periods of silence may be taken for reflection on the entanglement of emotions and injuries. Everyone's feelings are acknowledged. Then confession, repentance and forgiveness take place. Everyone releases (kala) each other, letting go. They cut off the past ('oki), and together they close the event with a ceremonial feast, called pani, which often included eating limu kala or kala seaweed, symbolic of the release.
This ACW version
The ACW procedure is modelled on a derived version of Ho'oponopono created by Dr. Hew Len. It assumes that one is 100% responsible for the situations one is involved in with other people, and therefore by working on a relevant non-optimum condition within oneself one can also improve the condition of another who is not physically present in the session or even necessarily aware of it.