Re: kiai in aikido?
not sure if your using 'kiai' in some way that i havent seen before.
the only 'kiai' i know of refers to an exhalation--usually accompanied by a sound--when executing a technique.
here, and as ive been taught, ki is the energy, and ai is the harmony, so a kiai is a way of harmonizing ki (through breath).
i dont know of any formal ways to practice this--one just lets it out as it comes naturally.
in my dojo, the kiai is encouraged to encourage exhalation during technique execution (breath in while accepting/inviting/blending; breath out while sending/extending/executing)
are you talking about a different thing?