"World class runner Harold Abrahams, a friend and rival of Eric Liddell of Chariots of Fire fame, explained his desperate attempts to win the hundred-yard Olympic spring by saying, "I have just ten seconds to justify my existence!"
Whew! I hear that and wonder how long I will keep trying to "justifying my existence." How often I have woken up in the morning thinking, What do I have to do today to prove I deserve my place in the world? Or even more desperately, How long do I have to live to justify my existence? What more do I have to accomplish?
Why do I need to justify my existence in the first place? After all, I didn't create myself. I didn't ask to be born. I didn't choose where I would grow up or what gifts or opportunities I would have. Since God made me, gave me life, and allotted my times and the places where I would live, I certainly don't need to justify my existence to him. I do want to seek him, find him, understand what he wants and live responsibly before him. But my existence is already justified by the very fact of my existence. just the fact that I am is a sign of God's enduring love."
Leighton Ford, The Attentive Life; Discerning God's Presence In All Things. IVP, 2008, p.126-7.
This quote from Leighton Ford is one of the many rich ruminations that flows from his work in the spirit. I highly recommend it.