If you are able to see truth, then you can imagine the entire world in ruin; you are capable of seeing people destitute, lonely, hateful, spiteful, greedy, backward, ignorant, suspicious, flawed, angry, lost. This is not hard to do — to imagine the entire world in ruin.
What might be more difficult is to believe God when He, just as truthfully, says, “Be joyful, rejoice together, you ruins of Jerusalem! For the Lord has comforted His people; He has redeemed Jerusalem.” It might be hard to imagine that “the Lord has displayed His holy arm in the sight of all the nations; all the ends of the earth will see the salvation of our God.”
God says, “I — I Am the One who comforts you. Who are you that you should fear man who dies, or a son of man who is given up like grass?” (Isaiah 51:12) You may find it almost impossible to believe that “the prisoner is soon to be set free; he will not die and go to the Pit, and his food will not be lacking. For I Am the Lord your God who stirs up the sea so that its waves roar — His Name is Yahweh of Hosts. I have put My Words in your mouth, and covered you in the shadow of My hand, in order to plant the heavens, to found the earth, and to say to Zion, ‘You are My people.'” (Isaiah 51:14-16)