You may train for a long time, but if you merely move your hands and feet and jump up and down like a puppet, learning karate is not very different from learning a dance. You will never have reached the heart of the matter; you will have failed to grasp the quintessence of karate-do.
Gichin FunakoshiOnce a kata has been learned, it must be practised repeatedly until it can be applied in an emergency, for knowledge of just the sequence of a kata in karate is useless.
Gichin FunakoshiIn the past, it was expected that about three years were required to learn a single kata, and usually even an expert of considerable skill would only know three, or at most five, kata.
Gichin Funakoshi