If we analyze life on earth with a completely rational mind, we see that it is a painful joke in so many ways. A child is born, only to have some mixed experiences, reproduce as all animals are destined to do, and then die, usually painfully. That is the way life looks to the reasoning mind.
What’s the point? Why go through all this suffering if we are just pawns of our genes’ propulsion to reproduce themselves? The rational mind cannot find comfort in Higher Reasons for why we are on this planet. So it looks for happiness to distract itself from the terror of its meaninglessness. It thinks it will find it in treasures and pleasures. But deep down, it also sees the old, forgotten man slowly limping down the street with is walker, and knows that this is his fate, too, one day.
Rationality is an admirable faculty of the mind when it is put to good use. But it can also be perverted and twisted, as we can see by all the evil dictators who have slaughtered millions for their “rational” reasons. But it does not equate to happiness on any level. The only thing that leads to happiness is happiness itself. We cannot get there by reasoning it all out.
If we allow ourselves to feel the natural happiness that rises within us, we will attract more happiness to us. Being miserable, even if it is rationally justified, is never the path to happiness. Happiness is a byproduct of doing something we love. It cannot be forced or reasoned into being but it comes naturally if we let it in.