Couldn't sleep after this one woke me up...

I was standing in the middle of a city with friends and family surrounding me. I left the city and began walking around the world, seeing all the wonders there are to behold. After my tour of the world, I was ushered through the streets as a one man parade, only no one was happy, they were all crying out to me, "Why won't you save us?". As I finished walking the streets, I found myself standing in front of a lake, and I said to a crowd of people, "There is nothing left for me here, why would I save you?". I then looked towards the city, and stood by as the world fell apart, and rebuilt itself in fast-motion. I could still here the passersby crying out and yelling at me as time passed, and a sign was built beside me reading: "The man who doesn't care".

When I broke my long meditation, I was asked why I had been waiting all that time, and what for. I answered, "Nothing... I wanted there to be nothing..."

How could I be so cruel?