Revelation 21:4

And He will wipe away every tear from their eyes; and there will be no longer be death; there will no longer be sorrow and anguish, or crying, or pain; for the former order of things has passed away. 

God, from the beginning, set out a plan to bring His family back into the fold. He sent the Holy Spirit, and He gave us the bible because God knew life would contain trials and we would need comfort and guidance. We can take comfort knowing that Jesus is coming back and will change this world and will remove sin.