Some hurts can't be healed

"The realm of Sauron is ended!"  said Gandalf, "The Ring-bearer has fulfilled his Quest."  I just reread that portion of Tolkien's The Return of the King (For the 15th time?  Maybe, I know I've read the series at least that many times; it is, afterall, my favorite.) today.  In the book, a great evil is removed from the world with Frodo's victory over Sauron.  Sauron hopes to enslave the world in his lust for power but is done in by a humble hobbit who has no desire to lord anything over anybody.  That moral lesson is itself a profound one for Tolkien, but another emerges as you read the last few chapters of the book.  Over time, it becomes clear that all of the hurts caused by Sauron, and others, cannot be healed.  Some of the wounds are too deep, some must be lived with even when evil has been defeated.  Tolkien's brilliant novels are a work of homage to those who risk everything in service to a greater good and whose sacrifices he witnessed first-hand in life on the Western Front in WWI.  His service in war taught Tolkien that evil cannot be wholly removed from our world.  The "war to end all wars" only put a stop to war long enough for a new generation to grow in its shadow and start a new bloodier war.  For many veterans, Tolkien's words hit especially close to home.  They may have returned "whole", or nearly so, from war, but a part of them has been forever left behind with the brothers in arms they lost and the horrors they witnessed.
In the end, Tolkien's hero Frodo, and his trusty servant Sam are permitted to sail over the sea to the Undying Lands where they can find rest and peace at last.  In our world, we can offer comfort to those who mourn, honor to those who have sacrificed, and gratitude to those who have served, but we cannot heal all wounds.  It is beyond our power to do so. 
Is there hope, for healing in the end?  How can troubled souls find peace?
"Now the dwelling of God is with men, and he will live with them.  They will be his people, and God himself will be with them and be their God.  He will wipe every tear from their eyes.  There will be no more death or mourning or crying or pain, for the old order of things has passed away."  - Revelation 21:3-4
There is hope, there will be peace, and sorrow will be turned to joy when one day we all stand in the presence of our savior and feel the warmth of the embrace of God's own Son.