Here is a good interview by Paul Bradshaw with Rick Warren, pastor of the Saddleback Church in California and also author of the Purpose of Drive Life book (I got this in my email inbox).
In the interview by Paul Bradshaw with Rick Warren, Rick said:
People ask me, What is the purpose of life?
And I respond: In a nutshell, life is preparation for eternity. We were not made to last forever, and God wants us to be with Him in Heaven. One day my heart is going to stop, and that will be the end of my body– but not the end of me. I may live 60 to 100 years on earth, but I am going to spend trillions of years in eternity. This is the warm-up act – the dress rehearsal. God wants us to practice on earth what we will do forever in eternity.. We were made by God and for God, and until you figure that out, life isn’t going to make sense. Life is a series of problems: Either you are in one now, you’re just coming out of one, or you’re getting ready to go into another one.