in a couple videos I've seen about aikido in japan (especially aikikai), their taisho seems to have a kiai session. I've also had a couple shihan come to my (previous) dojo to train with us.. and they also teach kiai in taisho. what is the purpose of kiai? even though my current dojo exercise similar movement (rowing), we don't exercise kiai. and our rowing movement are much more flowing and slow instead of sharp and hard like in the videos. do you think kiai or those movements has anything to do with our Aikido? or even Ki?
I know that some of you will probably tell me off that I should ask my Sensei about this. I will certainly ask his opinion too but people in aikiweb seems to have very interesting opinions about stuffs like this so I'd appreciate it if you'll share some with us