It's been some time since you asked this question about reiju and the original reiki taught by Usui. But I'm a newbie, so if you've already gotten this info, maybe another newbie hasn't. James Deacon has published information on the original reiju process in an ebook which he freely shares on the web. Go to
http://www.aetw.org/tic.htm and look for it. If you have trouble finding it email me and I'll attach a copy.
Sunshine
