Everyone is a moon, and has a dark side which he never shows to anybody. ~Mark Twain

At first, when I read this quote I was thinking it was just another cheesy illusion. But the more I read it, the more I began to see the truth in it. Nobody really knows who someone is inside. We may feel we do, but how can we? I tell my husband everything as he does the same to me. He still has no idea how my mind operates or what my exact thought or feeling is at any moment. He may have an idea but really there is no way of him knowing exactly.
This also makes my think about the twisted stories we hear involving serial killers. Many of these clearly deranged beings we friendly neighbors that nobody would blame for stealing your rake, let along mass murdering innocent people. I guess there really is no way of truly knowing anyone else in their entirety. How can we even be sure we really know ourselves?

We can only appreciate the miracle of a sunrise if we have waited in the darkness.