“Energy, Courage, and Right-Mindedness — The word ‘energy’ [genki] is well-known, but if one asks if you do not have energy if you have even one sickness [byōki], it is difficult to come up with an answer. There are people who are healthy yet do not have any energy, and there are people who are sick, yet full of energy. Plus, even among people who have roughly the same power, for example, there were people who gritted their teeth and stood their ground when Demon King Piccolo attacked them, yet there were also people who trembled and fled. Thinking about it this way, perhaps you will understand that a variety of different ‘Ki’ are indispensable in battle. In the world of Chinese martial arts, exemplified by T’ai-chi Ch’uan, kitraining and control is given great importance.
In Dragon Ball, the dark mage Bobbidi invented a machine that measures and absorbs ki, but current science cannot measure ki levels or store it anywhere. However, when someone cheers you on, you can ‘receive energy and courage [yūki]’ from them. ‘Ki’ is something that cannot be seen with the eyes, yet it is there.”
