The happiness is commonly conceived as a state. A state of happiness seems to mean especially a manner of delaying what should naturally happen with us.
A prolonged state of happiness as we generally conceive to be the possession of wealth, health, or peaceful relationships makes from that delay a way of opposing to the natural course of events.
The closeness to what is unnatural reveals itself by the unnatural and calm religious feelings which especially enter the minds of those which live a prolonged happiness.
However, it is still hard for many of them to fight with the final revelation of the death as a natural end of their life.
The experience of death tells us that we finally do not wish for a long delay of the natural course of life, but just for a small one, since in the nearby of death we want, pray, or beg to live only a little longer.
For this reason, those who reach the happiness just for short durations are satisfied with their life. They can get the necessary delay even from the simplest things: rearing children, getting drunk, having a job and so on. If they are still unsatisfied, the reasons are not natural. Their complaints are mainly due to the social habit of equating the happiness with a prolonged state. For instance, the suicide has almost always a social conflict as its cause.