It’s a question I would not expect Christians to ask an atheist, but somehow it happens. There’s really a simple logic as to why Christians ask atheists what purpose their lives have.
Christian theology states that this life is fleeting, like a grain of sand on a beach of the infinite. I agree. Christian theology states that the pleasures of this life have consequences. I agree. Christian theology states our soul survives death and undergoes judgment, at which point our actions will determine our eternal fate. This is where our views diverge.
I fail to see how lacking a belief in the afterlife makes my life meaningless. On the contrary, it makes my short, finite life the most meaningful thing in the world to me. Nor does this view make me wreckless. Our lives are short, and because I believe this is all we get, anything that shortens our lives will have “eternal” consequences, as far as I’m concerned.
Christians also don’t like the scientific view of the universe. We’re one of billions of species on a wet rock, hurtling through space around a hydrogen fuelled fireball, which is one of billions of star systems in our galaxy, which is one of billions of galaxies. It isn’t “special” enough for them. It wasn’t all created for our benefit. To Christians, science [and by extension, that wretched atheism] is shattering their anthropocentric view of the universe… but what is the harm in the humility of this realization?
Christians also find something offensive about being descended from apes. Of course, they are even more shocked when you point out we are also descended from pond scum. Is that so much worse than being dirt that some god blew life into? I don’t see what the fuss is about. Besides, we aren’t pond scum, we’re the descendents of millions of success stories. Our DNA carries most of the same coding as our ancestors who hunted mammoths. We are the spawn of heroes. Religion has no monopoly on romanticism, nor does it even have the best product for sale.
It’s not hard to see why Christians cannot imagine what life without religion would be like. I guess since they define hell as “the absence of God,” a life without God must not be worth living. I’m glad religion is there to act as a crutch for these people, but it would be nice if they would stop hitting people over the head with it.
There are more reasons to live than there are people alive today, which is why most of us aren’t in a hurry to leave. Even Christians, who claim to believe in eternal bliss after they die, fight and struggle to stay alive, even going so far as to protest euthanasia and abortion on the grounds of being pro-life (capital punishment is ok… that's in the Bible… like what they did to Jesus…). The Pope drives around in a bullet-proof car, what more is there to say?