<span>The sentences are:
<em>. In a way, it seemed, he was part of the morning </em><em>fog,</em><span><em> or my own imagination, but there was also the reality of what was happening in my stomach.</em>
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"part of the morning fog or my own imagination" indicates it affect soldier's mind, and "</span>reality of what was happening in my stomach" indicates it affect something physical.<span>
</span><span><em>- In all kinds of combat the whole body is battered by emotion. The ductless glands pour their fluids into the system to make it able to stand up to the great demand on it.</em>
</span>From this sentence, the proof is " whole body is battered by emotion." for psychological and "ductless glands pour their fluids into the system" for the physical.
Cause and effect, but I’m not sure.
Answer:
Think of a very loud, sharp, shrill sound - a shriek, or an emergency siren would probably be some of the better examples. The word piercing has somewhat negative connotations - it would be best used for imagery during a scene where there's a lot going on and the writer wants to draw attention to This Specific Thing that's happening.
"A piercing scream echoed throughout the room, drawing all eyes to the source of the sound."
