DISCOURAGMENT vs SELF-ABSORPTION
Let say a person involve in her Christian ministry come to you and say that he thinks he should take a Sabbatical from her ministry because feeling tired or unmotivated any longer.
What would be your answer? The natural answer would be, ‘yes, I understand, you been involved for many years, a little break would not hurt. Unfortunately, rarely did I saw these people getting involved again.
What would be a more Biblical way to answer them?
Lately, I was greatly encouraged by John Piper counsel. He wrote, “We find ourselves not energized for any great cause, but always thinking about the way to maximize our leisure and escape pressure.” The problem is not exhaustion cause by the work, but a person can gradually become so SELF-ABSORPTION that he doesn’t have any resources for God’s work. Isaiah 58: 10-11 mention when people focus on helping others they will be “like a well-watered garden”. Jesus also mentions “rivers of living water that will flow out of the individual life.” God has made us to flourish by being spent for others, not on ourselves. Jesus said, “It is more blessed to give than to receive” (Acts 20:35). Pipers add, “My point is that one of the causes of some people’s darkness is a slowly creeping self-absorption and small-mindedness.” 
Before you feel like taking a sabbatical take time to examine what motivate you.
 John Piper, When I Don’t Desire God: How to Fight for Joy (Wheaton, IL: Crossway Books, 2004), 227.