Suffering is a mystery: an unavoidable reality of human life on earth, which disorients us and tests our souls. It leads us to ask questions about God and his goodness. Though we seek pain relief and comfort, suffering cannot be solved by human effort. Instead, Jesus invites us, "If anyone would come after me, let him deny himself and take up his cross daily and follow me" (Luke 9:23). As we accept his call to self-denial, suffering can become redemptive, conforming us to Christ in his salvific suffering. This talk will explain Catholic teaching on the redemptive value of suffering and show how it can go from feeling useless to transforming us to be like God.