God's Word is at work. What response do we have toward God's Word? Your response will determine fruitfulness or barrenness.
Samuel's attitude toward God's Word must be our attitude if God's Word is to profit us. Are you listening when God speaks through His Word?
The Holy Spirit is vital in worship. We must have the Spirit's work in our hearts, or our worship is in vain.
Are you truly worshiping God, or are you just going through the motions? God defines true worship for us.