Your life will have significant bookends when it is all said and done. What is between those bookends and where it ends is for you to write out, either with or against the Father in heaven. Take for example the life of Jesus... at 12 He declared, "I must be about My Father's business." At 33 He declared, "It is finished."
Enter into this Christmas season thanking our Father for the bookends of Jesus. Without His perfect bookends, our bookends would be meaningless.