I walked into the cave with a torch in hand.
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If I were to say that this was my first time entering a cave, it wouldn't seem accurate.
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I have been living in an underground city since I was born.
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Living in the underground city, I am like a descendant of cave dwellers, except that technological advancements have allowed descendants like me to have light, fire, and fresh air in the lightless caves.
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However, entering a cave that has seemingly never been processed by human hands feels like losing a protective shield, leaving only tranquility and profoundness.
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The torch's light is not very effective in this pitch-black darkness; at most, it can only illuminate a three-meter diameter centered around me.
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The cave seems very deep, and as I hesitate whether to continue walking forward, I once again feel like I'm stepping into nothingness!
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Speaking of stepping into nothingness... I once heard a rumor.
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The rumor is about the brain detecting a self-preservation mechanism that occurs when the body is in danger.
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One example is when a person experiences occasional moments of feeling like they're stepping into nothingness and wakes up from sleep when they are excessively tired.
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This is also the brain's detection of a potential emergency behavior, as if the person is about to fall into a coma.
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It's similar to the effects of performing "Cardiopulmonary Resuscitation (CPR)" or using an "Automated External Defibrillator (AED)".
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And me... Could it be that every time I experience that feeling of stepping into nothingness, it's also because my brain is protecting me?
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