However, in regards to Phi's question re koryu, the bushi were pragmatists. The actions in that video require peacetime. During the period when koryu were invented, if something didn't work, it resulted in injury or death. So, my focus in this discussion, for whatever that's worth, is going to be on religious terminology/information as it actually functioned as a practical tool.
yes, this is exactly what i was referring to. Ellis stated it better. i understand there are various "talisman" type of usage or charlatan. however, as a martial artist and a pragmatist, i tend to focus more on the type of practical information/terminology that is part of the training curriculum, i.e. integration.