SEICHUSEN AND EMBUSEN

AJ van Dijk - Naoki Ishikawa - Nobuyuki Nukina during
seminar Romania 2007.
Imagine the body to be the Earth. The core of the earth is magma, this is not on the surface, but this is inside. The tanden, is also inside the body. So, the seichusen is not a line in the front of the body, but the seichusen is the line inside the body. Going straight through the tanden. Therefore, the seichusen changes constantly as you move around ukemi.
Let's say central axis.
The litteral meanings are seichusen: correct center line and embusen:
demonstration line. The seichusen is the center line of your own body
and the center line of the opponents body, while the embusen is the
line from your seichusen to your opponents seichusen. Therefore in
combat it is of great importance to protect your seichusen at all
times. Move off the embusen, creating a new embusen, protect your
own seichusen on the way. The new embusen that is created should be
good for you and bad for the opponent. Good for you and bad for the
opponent are two different things.
Bad for the opponent would be such a position, that he is not able
to hit you properly without having to move or correct the body. If
the opponent has to move or correct his body this will be either a
large connected movement or 2 movements, which is even worse. Anyway,
it means that his seichusen should not be pointing towards yours.
Good for you is also like the above, but there is more. Off course
it is good if his seichusen is not pointing towards yours, if you
stand for example at the side of your opponent, but does this mean
that your are infact in a good position? The point is, that you have
to be in such a postion that you can immediately his a vital point
of his body. There is only a target if this is an actual target.
One can manipulate seichusen, or in other words, change seichusen without the opponent noticing it. If you do junzuki, the seichusen remains the same. If you would do the junzuki in stages, like some teachers teach to beginners, it could be to move the back foot next to the front foot and from there advancing forward. In that case, seichusen changes. That is not good, for junzuki.
However, one can use a change of seichusen in ayumi ashi (or any movement) to enter the opponents ma-ai safely.

Mr. Ashihara shows seichusen in JKFan Magazine.
My point is, that you have to
regard correct technique not only to the single person who executes
the technique, but also how that the person applies the technique
to his opponent. So this includes the waza, shikaku, vital points,
ma-ai and the position of you and your opponent.
To protect the seichusen is to understand all the imaginary lines from your opponent to you and vice versa.



