If we examine the history of a believer, we will realize that after a person has been freed from sin and is in touch with the person of God, he frequently has this experience. In the beginning the Lord causes him to feel His love, presence, and happiness, but this feeling disappears after a while. When it comes back, the believer recovers his joy once more, but then it goes away again. Generally, the believer will experience this several times in his lifetime. This kind of experience may not happen to a believer who is still fleshly and has not yet learned to love the Lord. Only when a believer has made some progress and has learned to love the Lord will he experience this.