So right. It is religions, of all persuasions, that claim to have 'the answer', the Jehova's Witnesses as much as any and more than most.

There is no 'answer', indeed, when I've asked them what the question is they have never been able to tell me.

The reality is that there is life and death. Ironically, the only agreement I can find with any religion is that we are eternal. However, I don't mean that in the way that they do. Rather, we are composed of minute entities such as protons, neutrons and perhaps even smaller particles not yet discovered. I'm not a scientist and don't know. However, in death that is to what we return and those particles are then free to be incorporated into other animate or inanimate existence, for they don't cease to exist. - So, in that sense, I do believe we are all eternal.