Moves Hidden Within Kata

Traditionally kata was a way of passing down sequences of moves. It is a form of combat done by one person against a series of unseen opponents with the aim of practicing fighting sequences. Each move has a meaning - it is a block or stroke against your opponents move. I'm not sure why this started, perhaps seeing and doing is more effective than text. Alternatively, it may have come about when martial arts such as karate were illegal and hence practiced in secret and could not be written down. However, over the years two things have happened; firstly, some of the meaning has been forgotten, or rather not passed on, and therefore you just have to make an educated guess as to what it was actually meant to mean. Secondly, many katas are simplified to the point that some moves are partial or only implied. Sometimes this was done to avoid exposing children to potentially killing strikes such as in the Pinan Katas which were specifically designed for children. For example a spear hand to the windpipe becomes one to the solar plexus instead. Fair enough.  However, some of the moves hidden within kata can be surprising. For example in Pinan Godan the final moves essentially comprise grabbing your opponents testicles and pulling them upwards to shoulder height rapidly whilst simultaneously thrusting your other hand down to strike his groin region, assuming the departure of his testicles was not a sufficient insult to stop his attack.

YouTube footage of Pinan Godan in a style similar to the way I have learned - the move described is at the end and repeated in mirror image - the 'pulling' hand moves very fast and is hard to see

This would be best performed with your opponent being male, naked and in horse stance for maximum ease. It does raise ethical issues regarding the appropriateness of attacking a man so described since he may not have full mental capacity. Alternatively, assuming a more typical, clothed opponent, it is likely you would pull both the clothing and groin upwards, tipping him off balance and perhaps the downwards strike is in fact to the head of your now falling opponent. That's the challenge of making up Bunkai! Either way, it is not always clear what the moves mean, but I find that if I invent an explanation, even an incorrect one, it makes the kata much easier to remember and to do well.