it's a good question...people claim to have so much faith in the afterlife, yet sob at funerals about how the person was "too young." if what comes after is so great, then why don't we all commit mass suicide? although I guess that's a different story
while it's true that there's always someone worse off, i don't know if that even relates to this question...the richest people in the world have the same thoughts i'm sure. in fact its kind of the opposite. you get to thinking about how all the material possessions in the world don't mean a damn thing, can't take it with you right?
i dunno, for me right now, the most important thing is sort of an intense desire to do something worthwhile, to lead a fulfilling life like LJT was talking about.
but i see older adults, people my parents age in their 40s...and they live pretty comfortably, have nice families, go to boring jobs everyday so they can buy their kids ipods or whatever. and despite the pretty high standard of living around here, under the surface i sense so much depression and apathy.
so in conclusion, i have no clue what the meaning of life is. i guess just to try and enjoy it, although that's really cliched to say. i suppose if you're really in a crisis with the thought to the point where you honestly have no reason to live, you should find some kind of project, charity or a hobby or whatever that's fulfilling to you