Authentic Kuji Kiri 九字切り (Final video)
There is no sugar coating or play on words. It is what it is.
Don't play around with authentic Ninja Martial Arts or even try to claim anything about it not being used for Arts of war. Don't attempt the authentic Kuji Kiri rituals with boards and circles unless you are willing to loose your sanity or even loose it all.
The truth is given and my conscience is clean.
References regarding buddhism:
etc etc etc