Receiving a black belt in any art is an achievement, and one should be proud of it... having said that, when I received my I Dan in TKD, I was told that cho-dan meant "baby black belt" (said with a smile... but still... at no time was I ever under the impression that black belt was an end in itself). As others have said, at black belt, you are finally ready to learn something beyond the basics. Here's another comparison - at white belt, TKD (and, in general, any MA) is 95% physical, and 5% mental; that is, the skills one is learning are primarily physical, through demonstration and practice, with relatively little explanation given as to why something is done a particular way. As one improves in skills, and is promoted up the ranks, this shifts, until at black belt the emphasis is primarily mental, rather than physical. There are several reasons for this:
- one, it is a sad fact of life that, past a certain age, no matter what you do, your body is going to stop getting better, and will begin to get worse, so you must get smarter, because you aren't going to get faster!
- two, as has been mentioned, the senior student present in a class is expected to help the instructor - that means the student must begin to understand the techniques being taught well enough to critique and teach them, which requires a higher level of understanding than is required to perform them.
- three, without understanding of techniques, they are less useful. I could take any lower belt in my class and teach him/her one of the patterns I learned for IV Dan - but that won't make the student a VI Dan, it will make the person a color belt who knows a senior pattern. Instruction in MAs follows a sequence that builds on itself, because that helps students to understand the use of each technique, without which techniques cannot be applied in a meaningful fashion. Different organizations may teach the same techniques in a different sequence, but there is a reason for the sequence chosen, and until one reaches BB and has learned a reasonable variety of techniques, and can look back at what has been learned and how it inter-relates, this sequence is hard to explain, and often isn't explained. At BB ranks, the rationale behind the sequence can be taught, because the student now has enough experience to understand how the sequence builds on itself.
Black belt is a beginning - not an ending - and students who achieve the rank of BB need to be aware that I Dan is a signpost on a longer journey, not a destination in itself. The ones who think they have made it by reaching BB have missed something along their journey - and are more likely to drop out in the year or so after testing, especially if they are not allowed to rest on their laurels by their seniors, as some expect. Having set their sights on the destination of BB, they need to find a new goal - a higher rank, instructor status, etc.