You only harvest what you plant. 
Think about that.  You can only harvest what you plant.  So if you plant anger and resentment, that’s what you will harvest.  If you plant joy and peace, you will harvest joy and peace.  If you plant nothing, you will harvest nothing. You get what I am saying?  

Galatians 6:7-8 (NLT) says “Don’t be misled—you cannot mock the justice of God. You will always harvest what you plant. Those who live only to satisfy their own sinful nature will harvest decay and death from that sinful nature. But those who live to please the Spirit will harvest everlasting life from the Spirit.”

I can’t help but connect this is my mind to another passage. One that is also about progression, growth, and in my opinion harvesting what you planted.  

James 1:14-15 (NLT) says “Temptation comes from our own desires, which entice us and drag us away. These desires give birth to sinful actions. And when sin is allowed to grow, it gives birth to death.”   

Sin, when it is finished, brings forth death.  Death. Not sickness. Not sadness. Not separation from God. Not discomfort.  Not inconvenience.  Not even unhappiness. Death. 

Not necessarily bodily death.  Death of relationships.  Death of self esteem.  Death of trust.  Death of dreams.  Death in the sense of the end of something that was once alive.  Permanent end.  Forever.

When we sin, we should expect to ultimately harvest death.  When we obey, we should expect to ultimately harvest life.