Revelation 22:14

Blessed (happy, prosperous, to be admired) are those who wash their robes (in the blood of Christ by believing and trusting in Him-the righteous who do His commandments), so that they may have the right to the tree of life, and may enter by the gates into the city. 

We have a reward in heaven if we do not lose hope. No matter what goes on around us, God is in control, and we are His children. When we keep our faith and close to God, our minds will remain stable and fixed. Our hearts will not fail, and our salvation through Christ will bring us to our eternal reward.