Well... to answer that, let me make the following correspondences: the lines in the script correspond to the movements in the kata. The act of learning the kata, internalizing it, corresponds to actors learning their lines. The use of those movements as a series of combat movesĀlinked techniques, in other words, informed by solid strategic principlesĀcorresponds to the performance of the play.
Now I suspect that most actors actually prefer getting through the line-learning part as quickly as possible, using whatever tricks they use as performers to absorb their scripts (or, if we were talking about musicians, their scores); what they really enjoy is the interpretation, the real-time manifestation of those lines so that they have a kind of living reality for the audience. That's the actor's craft. In the same way, I think that MAists who train the applications of kata movement, kata which they've learned well and accurately, probably prefer the execution of the real techs that those kata incorporate over the repetitive performance of the kata as a kind of choreographed showpiece. That's certainly true for me. As Bill Burgar puts it in his book Five Years, One Kata about the combat content of Gojushiho, the problem is that people focus on performing the kata, not studying them. If, once you've learned the movements really well, you stop working primarily on the performance and more on how (subsequences of) those movements translate into fighting scenarios, then you have the great satisfaction of having decoded what is, for most people, a rich instruction set whose existence they're unaware of; and if you then take that instruction set and train it under tough, realistic conditions with a noncompliant training partnerĀsomeone who is going to do a very good imitation of a violent street attack on youĀthen you have the even greater satisfaction of seeing just how robust and businesslike the technical content of the MA you practice really is! But it's that last stepĀthe live training partĀwhich is the hardest and most intimidating, because that's where you have to take the information contained in the kata to the bank and really incorporate it into your reflexive combat toolkit. And the more realistic is, the better for you down the road, but also the more likely you are to get roughed up during your training...
Still, I have to say that for me the best part is working out the bunkai and testing it out with a good training partner. If only there were more of those around, eh? Someone who'll give you a rough enough time to be a credible imitation of an attacker, but with enough control that you're not going to get killed if you (or s/he) makes a mistake...