Acts 20:24 “However, I consider my life worth nothing to me, if only I may finish hte race and complete the task the Lord Jesus has given me—the task of testifying to the gospel of God’s grace.” Paul knew God had given him a purpose for living and that purpose was to spread the gospel and explain what the grace of God was all about.  That is not a common thought.  If you or I were to be asked—what is the purpose of your or my life—would your or my answer be similiar?  You and I have to have a continual conversation with our Heavenly Father so we never lose the reason for living.