Purpose Driven Life in Neutral?

Anyone who has experienced 40 days walking through the Purpose Driven Life book of Rick Warren's may be able to tell you what their purpose in life is. Hopefully so.
However, based upon postings on sites such as YouTube.com, and the like, one of the major turn offs that the unchurched world has with the churched world is that the vast majority of the churched world really doesn't have a very firm grasp of what their purpose is, what they believe and why. There are multiple individuals that I've seen on YouTube.com, who submit, on a regular basis, video discussions in which they rip to shreds an individual Christian's beliefs utilizing passages from a book that the Christian was not real clear on.....The Bible. These non-believers' biblical knowledge blew the Christian's knowledge away, and the non-believers were able to expose the Christian's lack of knowledge and lack of conviction. The non-believers sum up their videos with "the moral to this story is: Christianity is bonkers because it's followers have no clue what they believe."
This is unsettling to me on so many different levels. However, tonight I have spent some time reviewing short-clip documentary type videos created by a group of Christ followers at a site called Highway Video. (Look in the "Classics" section.) A majority of the 2-7 minute clips were simple roving reporter type films in which a guy with a mic would stop people on the street and ask various questions. Among the questions were: Do you pray?, What happens when you die?, What does it mean to be a Christian?, Is it always okay for 2 consenting adults to have sex?, Are people evil?, Why don't people go to church?, and How do you connect with God? The one that compelled me to create this post was, "What is your calling?"
The answers that were given to this simple question made me realize that humans, regardless whether they are of faith or not, really don't spend much of their time investing in meaningful soul searching pursuits. We are so caught up in the temporal issues that we are unable to even give hardly a moment of pause to something that would seem so vastly more important, such as "Why are you here? What is your purpose?"
Now most of us think that we know what our purpose is, but take this test: Write or record your purpose in five minutes or less. A majority of the people polled in the video, when initially approached with the question, "Do you have a calling?", the answer was absolutely "YES", but when questioned further with, "What is your calling?", these same folks obviously had never really given it any thought before or had become so far removed from their calling, they couldn't remember what it was.
In addition to non-believers not knowing their purpose, they also demonstrated a very poor understanding of what they did believe when it came to things such as life after death, morals, prayer, or the existense of a Creator. A majority of the answers sounded something like this, "I've never really thought about it all that much."
Now for the point. If Christianity is bonkers because a certain number of its believers are not fully clear on what they believe and why, then Non-belief is bonkers for the same reason. In reality, it would serve us all to spend some meaningful time understanding why we believe what we believe and having a clear understanding of what our individual purposes are.
If you would like to start today, here is a good starting point: The Purpose Driven Life.