Butt, I'm comfy!
A lot of people live with their heads in the sand. To them, life is about thinking positive. Everything looks fine when their heads are down under. But in the real world, back up on the surface, their butts are waving in the wind, vulnerable and inviting targets. Those butts can get kicked hard at any moment. As long as that hasn't happened, those positive-thinking heads are "as snug as a bug in a rug" with their illusions. "Just stick your head in the sand," they advise, "and everything will be just fine! Think positive, like me."
A few people live to provide the sand. They are the true rulers of the world (also known as sociopaths). They can kick butt any time they want. Sometimes they do, but they do it in a way that leaves the recipients completely clueless. This is usually quite easy, since the recipients have got their heads buried in the sand! One thing these sand-men never do is think positively. No siree! They think realistically. Their heads are never in the sand, because they need them ever-vigilant to protect their butts.
Obviously, the people with their heads buried don't even know the sand-men exist. A few have found out, often from a hard kick that popped their heads out of the sand. But when they pop their heads back under to warn the others, they are ridiculed and called names like "pessimist" and "conspiracy theorist". These whistle-blowers are shunned as being "crazy" or full of "negative energy". And in this way, a few sand-men can dominate over vast fields of butts swaying gently in the wind.