Nei kung experts such as John Chang have allegedly spent decades learning how to harness their bodies’ inner chi power. Some of their incredible demonstrations, however, can be reproduced without special training. With a proper setup, most adults can shoot a lightning bolt from their fingertips.
There is a man in Indonesia who is a master of the ancient Chinese science of neikung, or “internal power.” His name is John Chang, and he is my teacher. Mr. Chang was first presented to the world in the award-winning documentary series Ring of Fire, filmed by the brothers Lorne and Lawrence Blair; his privacy was protected by the rather ignominious pseudonym Dynamo Jack.