But why can't I hear God anymore?

Often Christians feel the need to cover-up the times when God seems to be silent and far away. Part of having faith is believing in the promises of God, even when we don't see physical evidence of His active participation in our lives (Heb 11:1). These painful silences can be strong reminders of just how dependent we are on God and His blessings, and how little we can do for ourselves.