The Marriage of Heaven and Hell is a story written by the poet William Blake. In it, he talks about how heaven and hell can work together instead of opposing each other. In the story, heaven is portrayed as a place where everything is perfect and people have no worries or troubles. On the other hand, Hell is a place of chaos and torment. Despite these two places being very different, Blake believes they can be united if people learn to accept each other and work together. He believes this union is necessary for a better future. In the story, Blake uses an example of a flower that can grow both in heaven and in hell, showing that things can exist in both places and both can be made better through harmony.