Jason Helopoulos writes:
Most of us go through real times of spiritual melancholy in the Christian life. They can be brief or entire seasons in which, as Gisbertus Voetius said, a person “fails to feel his or her heart’s delight in God and divine things.” If you have been a Christian for any period of time, you most likely have experienced this reality. In the midst of these times we often struggle to know why this feeling has crept into our hearts. It is good for us to search our hearts in times like this. We must ask the Lord to give us wisdom in identifying the cause—even as we continue to seek him. These are eight of the most common causes: