Practice Makes Perfect
Executing strikes during a kata reinforces what the student has in his arsenal for offensive attacks. The student executes punches, elbows, chops, kicks, knee strikes, and other attacks that they need for their rank. Some katas have the student moving while executing strikes. This builds on the benefits and skill of maintaining a strong balance as well as learning and using distance with strikes.
Strange and New is Good!
Katas also teach the student about defense through the use of complicated combinations of blocks and movements. There are outward blocks, upward blocks, inward blocks and more. Forms may have strange or different techniques that haven’t been encountered before, and training them allows you to broaden your range of abilities and increase your span of knowledge.