Do you truly understand the power of the human brain?

After I woke up from my coma after an accident, I didn't know what was a hallucination or reality. I once thought I was abducted and called 911 on the hospital staff. I also thought I was in different places in the hospital; but never left my room. I was in 24 hour watch as I was a fall risk, because I fell in the ICU, when I was hallucinating and got out of bed.

The brain can play tricks on you and make you believe what is not true. It scares me to death now.
Do you truly understand the power of the human brain?
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