Lets suppose there's no purpose to life...why do the rules of reality exist? Why are there laws in thermodynamics...chemistry...biology...and all nature in general? Don't things seem all too perfect to be haphazard? There's an eerie logic at work in the balance of existence...within our bodies, ecosystems, and solar system. There's a cruel logic to the nature of life and death: we all live...we all die. Is that not reason enough to think that this logic extends into some purpose for life itself?
Just think: we are ruled by rules...natural law. Beyond the societal laws and moral ethics we've incurred...we are ruled by baser laws. So why ask "how does one hunger?", when you can wonder, "why do we hunger?". We should question the true origin of these tendencies. Our bodies tell us: you must sleep, eat, drink, breathe...you must at all costs avert death...your genetic code must survive. Any evolutionist will tell you that these notions are as a result of man being steeped in millions of years of hard knocks. But I think one should look beyond the existence of the Earth itself...look back to that "Big Bang" and ask, "In the very beginning of it all...what determined these rules?".
How did this logic come out of nothingness? All people - scientists or otherwise - must admit: things are just too well thought out. Surrrre, we can figure out these laws (that's empiricism at its finest), but are we any closer to knowing why these rules govern us? Why we exist? Why we must survive? Let's stop asking "how?"...let's start asking "why?". I say until science offers a reason as to the "why"...all scientific discovery should be taken at its face value - a detailed road map of the world...void of half-decent directions.