Clark Bateman wrote:
...empty your thoughts, ......
Hmmmmm.... I wouldn't suggest that, Clark. Quite the opposite. The ki/kokyu things that are "for health" are traditionally done by emptying the mind. But the martial things are always done with "intent", quite the opposite. In order to train kokyu strength, which is a lot of what the Rowing Exercise is, you have to focus on relaxing and making your center be your arms/hands. That is actually focus, not emptying the mind.