Death is a fascinating thing. For on one had it robs the existence of one creature but at the same time it gives the other creature the necessary things it needs to survive. If one might not die and the existence of other that feeds is at risk. So no matter what death is inevitable, only thing is it might shake hand with dependent creature, who's death is an opportunity for the other... Our brain too is trying hard to keep us alive. There is this constant battle for survival. Even though we know it is constantly knocking our door, and all we do is find ways to cheat it. Run from it, it's when we realise that we have to fear death and start running away from it we lose control. For you can never escape it but only cheat it.