We live in a world with real problems that lead to real fears in our lives.  And God knows well those problems our sin has caused and has a very real wrath against our sin.  But our salvation from that wrath because of the work of Jesus is real, too.  And because of what he has done, we no longer have to walk in fear and discouragement, but can be encouraged ourselves, and can encourage one another with the reality of his work on our behalf.