Quotes From Book " Buddha Pill " in red :
In the Nirvana sutra, the Buddha states the unreality of killing: ...." it is like the echo of a voice in the mountain valleys. The ignorant think
it is a real voice, but the wise know it is not. Killing is like this. The foolish think it is real, but the Buddha knows it is not. Chinese Buddhist History, Tikhonov
& Brekke, pg 196.
How can Buddha think and say
something like that? A explanation may be found in the "awakening " of Buddha in deep meditation. He reached a non-dual state ( which goes by a few names-awakening, advaita vendanta, nirvana, universal consciousness ) when the mind ceases to discern
all polar opposites including good or evil. Hence with the cessation of good/evil, he was liberated from "karma". Discernment of life and death also ceased and he was liberated from "reincarnation", there being no life and no death. It was in this state
of being that Buddha can state the "unreality of killing".
The above is not the only source that Buddhism and Zen ( Japanese
Buddhism ) holds to the "unreality of killing" which serves to justify wars, violence, kamikaze suicides, etc. Here are some further examples :
In the case of Zen Buddhism, its very spiritual pinnacle – the attainment of enlightened selflessness – was used to train soldiers during World War II,‘[ The soldier] must become one with his superior. He must actually become his superior.
Similarly, he must become the order he receives. That is to say, his self must disappear.’ (p. 103) Victoria, Brian (2010). A Buddhological critique of ‘Soldier-Zen’ in wartime Japan.
B} Takuan, a famous Zen master from the 1600s, wrote: ‘The uplifted sword has no will of its own, it is all emptiness. It is like a flash of lightning. The man who is about to be struck down is also of emptiness,
and so is the one who wields the sword. None of them are possessed of a mind that has any substantiality. As each of them is of emptiness and has no mind, the striking man is not a man, the sword in his hands is not a sword, and the “I” who is
about to be struck down is like the splitting of the spring breeze in a flash of lightning. 47 ’ In Jerryson, M. & Juergensmeyer, M. (eds), Buddhist Warfare, pp. 118– 143. New York: Oxford University Press.
Site comment : It is recommended that you should read the book " Buddha Pill " especially the chapter " The dark side of meditation