YES and NO is just a word but it have big meanings inside it.

Either you take a path, RIGHT or LEFT, and if it was a mistake, turn back and take the other path, because your are the one who can change it.

I love you but I cant love you.

You cannot open the padlock if you does not have the key.

Just run away from your problems if you want cause sometimes we need a time to think and cool down a bit before making a decision.