"As we spoke of last time, Master, I mean the narcotised patient [178], I am certain that I am right. People can get killed by suggestions during narcosis, can't they?"
"True enough. The simplest physics seem to be not known yet.
A person asleep, in coma, narcosis, or some other trance state,
might have his eyes closed, thus he actually cannot see, i.e. not
images, solely a red (Ganzfeld), diffuse light. Now, people are
tempted to think that the same goes for the ears. As if some
plugs are inserted. Subconscious and even conscious intake may
not be impaired at all. Often, because of the 'general danger' of
the situation, the hearing may become thousandfold more acute.
You know very well that sleep-conversion techniques work fine,
therefore killing on the operation table too. Only, the cause of
death [181], then, will NEVER be known. And, as you know too,
hypnodynamic techniques have even terminated a chemical narcosis,
yet nobody would try to predict anything under this head." [178],
[181]