Life... is like a box of chocolates - a cheap, thoughtless, perfunctory gift that no one ever asks for, unreturnable because all you get back is another box of chocolates. So, you're stuck with mostly undefinable whipped mint crap, mindlessly wolfed down when there's nothing else to eat while you're watching the game. Sure, once is a while you get a peanut butter cup or an English toffee but it's gone too fast and the taste is fleeting. In the end, you are left with nothing but broken bits filled with hardened jelly and teeth-shattering nuts, which, if you are desperate enough to eat, leaves nothing but an empty box of useless brown paper.
I have approximate answers and possible beliefs and different degrees of certainty about different things, but I'm not absolutely sure of anything, and many things I don't know anything about, such as whether it means anything to ask why we're here, and what the question might mean.