Probably the best known of these is the "Spiritual Energy Battery". Its precise design and composition are not in the public domain. Its purpose is to hold a 'charge of spiritual energy for an indefinite period'. When connected to a "Spiritual Energy Radiator" (again designed by King), it can be 'discharged'. ‘Spiritual workers’ pray and chant mantra, and ‘focus the energy’ into the battery where it is ‘stored’. The society's belief is that in times of crisis the energy can be released in a concentrated form and manipulated by cooperating Masters to the area in need. King named this activity "Operation Prayer Power". The Aetherius Society claims that under the guidance of the Cosmic Masters and with the aid of Spiritual Energy Batteries, they have prevented wars, and relieved the effects of natural disasters. King taught that these spiritual exercises help to prevent worldly destruction.