Mokichi Okada was the founder of Tenseishinbikai and the developer of Johrei, which the Tenseishinbikai website describes as "the rational and advanced science of the future. Johrei is the method of radiating rays of spiritual light, the light of the fire element, towards the clouds in the spiritual body which are the very cause of disease and other sufferings. . . . Johrei is the sole method for saving people from the great purification action that will engulf the world."