Unnerve:

You come off like someone with a morbid mentality.
I hope this is not the case here and you're simply curious by trying to dissect the essence of life and what it entails.

A curious mind is one of the most certain characteristics of a vigorous intellect. - Samuel Johnson

What I can tell you for a fact, is that we were all born to die, no one escapes it. What matters is how we live in the short time we have.

Questioning the purpose of life despite the fact that it's all going to end with everyone getting fed on by worms, doesn't mean we shouldn't live - and by "live" I mean, you do what you can, you do what you must... and my personal favourite, have a lot of fun while at it.

Biologically speaking, the body of every human being is worth the exact same thing once it's dead. It doesn't matter who the person was, what they owned, or who they were.

Idris Elba spoke these lines in a movie, I found it very funny, informative but also funny:
"... The human body is really not worth that much, maybe 11pence worth of magnesium, a couple pence worth of calcium, a bit of iron, not worth much...all in all its probably about a total of 3pounds (in weight) ..."

The above is what every human is worth once bacteria has done its job.
Few people already know this (and can visualize it), but it doesn't stop them from living their lives...and it shouldn't stop you or anyone else either.

Death is very certain and outside our human sphere of influence, BUT how we live and how much fun we have before the worms come to feast, is totally up to us.

What you said is true but don't forget the resurrection. God will judge us

thesicilian:

All of these things you mentioned could have been done in heaven. You didn't need to be on earth to see God's wonders, or multiply etc.

The truth is, no one really knows why we are here.

If you are alive then you have a chance to own an immortal body that does not die: after the resurrection. A body like that of the resurrected Christ. But you can only achieve this by living righteously now, you won't regret it. That is why we are alive; to qualify for immortal body or be death forever

Me dey wonder too.