" Why should we die? What purpose does it serve?"

Phrased that way, they are unanswerable questions. There is no 'should'' or 'purpose'...All things, animate & inanimate change and wear and become something else. It only troubles us because, as far as we know, we are the only entities able to reflect on the process.

For some, it is a relief and a release....for others an interruption and a nuisance. For those who come after us, it is a lesson to do as much as you can while you're here. Rick certainly came as close as anyone I know to doing something of value every day.....maybe I'd better go and try to emulate him....