'Why do Christians have to think that there’s some ultimate purpose to life? Isn’t that just your own personal weakness and need?'
 

Well, I think everyone assigns some kind of purpose to their lives, even if they don’t believe in God. When we look for purpose as Christians, we really aren't exposing some weakness on our part. We are just discovering the common desire on the part of mankind to understand why we are here. We all try to find identity in our work, our school achievements, or even our relationships. I mean, we all end up defining our purpose in life and it usually shows up in the titles we assign to each other, you know, ‘father’, ‘police officer’, ‘husband’.
 

'OK, so aren’t those titles good enough? There’s more than enough purpose floating around out there to satisfy us, without having to believe in a God at all.'
 

That may be true, but I believe that all the man-made purposes we define and assign to ourselves are as temporal as the beings that created them. They fail to ultimately satisfy our need for something deeper. We all sense that life was meant to be more than we currently experience. Perhaps this is why we all search for meaning and do our best to assign this meaning to our lives. Where does this desire and longing come from? Could it really just be a cruel trick of evolution? Or is there something more at work here? Isn't it possible that this desire is part of our original design? Perhaps this desire, this innate longing, is God-given. If that is so, then ultimate satisfaction will only be found in the eternal design and purposes of God. After all, who actually knows the purpose for ANY object better than the being who first created it? The notion of 'purpose' seems intrinsically tied to the existence of a purposeful Creator who has placed the creation in the environment for a reason. That's why Christians understand that purpose can best be found in a worldview which admits that a Creator exists in the first place...