How true is that phrase? Everyone has something to hide. Everyone has something they won't want others to know. Even I have things to hide. A million things. Certain things hidden can't be explained by reasons. It's hidden because it has too. People hide things for safety, happiness, pleasure, and lots more. Not everything should be known by everyone. Sometimes keeping it hidden is much better knowing that you might eventually gain from it.
May secrets be hidden, and hidden it shall stay, for as long as it has to.