Iaido is the art of reacting to a
surprise attack by counter attacking with a sword. An in-depth reading of the Japanese characters for
iaido is: I = being, AI = harmony, DO = way. "The way of
harmonizing oneself in action." The Iaidoka (a practitioner of iaido) wields a sword: not to control the opponent, but to control himself. Iaido is mostly performed solo as a series of
Waza. The Iaidoka executes various techniques against single or multiple imaginary opponents. Each Waza begins and ends with the sword sheathed. In addition to sword technique, practitioners require imagination and concentration in order to maintain the feeling of a real fight and to keep the Kata fresh. In order to properly perform the
waza, Iaidoka also learn posture and movement, grip, and swing. Iaido is never practiced in a free-sparring manner.