Hey Copper;
this is yet another add-on that hails from America. The earliest I can find this practice added on is from the Rand Schools, but it might predate that. Not a Japanese practice from what I can find. My thought is that it pulls from wiccan sources but who can say.........
But if you like trying new things.....
Just for fun, and to amuse yourself, try emptying the mind, and repeating it over and over, letting the rythym establish itself..... like a mantra..... just letting it go as it will until it is done.......
See what you think of that.
Take gentle care
Take gentle care
Take gentle care
Vinny