Why does happiness always elude us?

Surprisingly, in all known times, sages of various kinds tried to define or at least explain that what in real life could not appear in any way, calling this abstraction by happiness, and still continuing this fruitless occupation, to which the people are listening without any doubt not only out of stupidity, but also because they always wants better than they have at themselves, thereby moving the entire civilization forward, but upsetting until own death by the lack of the advent of happiness, however, consoling themselves with the existence of paradise, inasmuch somewhere must be happiness - let even behind the coffin.

Everyone has an idea of misfortune and various troubles, meeting with them repeatedly, but no one has yet really explained what happiness is, reducing its meaning, at best, to pleasure, satisfaction of emerging needs and well-being, that is, to the positive experiences, to which in fact all living organisms strive in their self-sufficiency, while happiness is a completely independent category, reflecting a certain activity of only human consciousness.
And without cutting off happiness from pleasure, well-being and complete satisfaction with surrounding, a person would hardly have any differences from animals that also strive for greater comfort, satiety, reproduction and other pleasant things, and happiness would be reduced in this case to physiology, namely, - to the release of endorphins (hormones of happiness), which is associated with the system of encouragement and centers of pleasure of the organism.