Because happiness is not a fundamental human need and never has been. It’s a possible side-effect, never a guaranteed one, of answering three fundamental needs that all humans share: our need for control, our need for connection, our need for consistency. These needs nibble at us constantly. They keep us on the lookout. They fight complacency. Indeed they were hardwired into us by evolution thousands of years ago to ensure we survive and reproduce. They’re still with us today, expressing themselves in relatively new and vastly different ways. This is because ours is a world where ‘survival’ is less a physical challenge for most of us than a psychological one. Evoluton did not expect smartphones. Our needs for control, connection and consistency must be answered simultaneously and sustainably. Once this happens, and it’s a tall order, they set the scene for conditions such as satisfaction, comfort, serenity or happiness, however defined. But should one or more of the needs go unanswered or be threatened for any length of time—and this often happens—it quickly takes precedence, gets in the way of serenity and holds us back. Control over our lives can be lost so quickly. Family problems and colleagues problems can so easily damage our sense of connection. And whose expectations are ever entirely consistent with their expectations? Cue ‘c’est la vie’. But cue unhappiness too.
The only reason why we all can't be happy is because some of us don't like the feeling. Happiness can sometimes can hide the truth of something dark and toxic. Just by one single person having a smile they can hide something. For explain they could be hiding there happiness or there darkness. They could smile for sadness or for evil. We all can't be happy, we at least need to feel another emotion and sometimes life is so hard that we have trouble being happy that we giving up hope to smile and laugh again. That's why happiness can't be there for everyone cause they need to find the thing that makes them feel happy and at peace. Happiness is for everyone, but not everybody wants it. We all want to feel something different then the same thing over and over again. That's why we have different emotions and have a different way to show them.


