Excellence means that you're prospering spiritually, mentally, physically and in every area of life. What does it mean to prosper? It means to do well, to have over and above, to walk in a high level with God. It means to be in a high class with God, where you can think like God and live like Him.
Chris Oyakhilome PhD. (2014). “Seven Things The Holy Spirit Will Do For You”, p.61, LoveWorld Publishing