Think about it, in life sometimes you have gotten God’s message clear while other times it’s not so clear. A spring gushes water that you sometimes just stumble across, like God working in your life. Other times in a “parched and weary land there is no water” (Psalm 63) you have to dig deep to find the water. This is especially difficult when you have recently been drinking from a spring.
Sometimes God’s silence is because He wants you to dig deep and search Him out.