“A sneeze might need an immune system as bacteria is being released and infect on the way out.”
So, while bacteria is inside, no problem. It comes out — instant death!
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“As stated above the neshama was blown in through the nose, so it would be blown out through the nose.”
If you put a balloon on a dying man’s nose, the Neshama will go into the balloon? Will it become alive and smile?
This reminds me of the discussion Rebbe Yehoshua had with the elders of Athens.