To try and live life without understanding life's spiritual principles is utter foolishness. Many of those principles are powerfully illustrated in the story of "Nehemiah". However effectively you may be serving the Lord now, the study of "Nehemiah" will help you serve Him better.
How do we react when we see God's principles disregarded, His walls being broken down?
Do our concerns take priority over God's concerns?
Nehemiah put first things first. So must we. He fulfils his mission to restore people to God and he overcomes intense opposition by a life of prayer. There could hardly be a better role model for us today.