I'm epicurean, I've no issues with death. Yes, we die... and that's it. Enjoy while you can.
But you don't know that death is the end for a fact.
You mentioned that Heaven doesn't exist in a previous post. But it absolutely does, and you know it. How do I know you know it? You aren't blind, are you? Even in the cities at night you can see some of the stars. They are in the heavens. From at least that standpoint, Heaven exists.
Now, think about the following. As complex as we are, and as complex as our thinking is, nobody has figured out how to cause people to live for 200 years. It may happen someday. But it hasn't happened that we are aware of yet. People usually die before age 100. The point? We are very ignorant about life.
The earth has some very nice places to live, even though some other places are very rugged, virtually uninhabitable. There are some great places to live, and some times of the year that have wonderful weather. But as far as we are concerned, we don't have any ability to make the earth produced great weather for us. The point? We are very ignorant about life.
Where did life come from? We have some great ideas about evolution. But NOBODY is really close to producing a practical model... a model of how it (evolution) actually, for a fact, COULD have happened. And if we DID have a working model, we still wouldn't know that, that was how it DID happen. The point? We are very ignorant about life.
From all this talk flows the idea that simply because we have a wonderful planet, it doesn't mean that it couldn't happen somewhere else out in "Heaven," the heavens, again. Maybe it has already, and it is just waiting for us out there.
You, yourself, know that we are looking for other habitable planets around other suns. Why can't there be a better one out there somewhere? Why can't we develop a way to live youthfully for a thousand years so we have time to go out there and live the better life? What if it happens in your lifetime that we do this? The double point? We are so ignorant about life and the universe, that why couldn't there be a God that made this wonderful stuff for us, and that promises a far better Heaven if only we accept Him? We don't know that there isn't a God.
In fact, when you combine the 3 scientific laws - cause and effect, universal complexity, and universal entropy - as we know them, the result IS that there MUST be a God that made all this. If you don't believe what science clearly says, you have simply created a religion for yourself, a religion of pessimism and despair.