The Dream Journal (also known by its actual name - "Lovely Sweet Dream") is a vivid representation of various nightmares and dreams which were used to partially inspire LSD: Dream Emulator. These nightmares/dreams happened in between 1970s, 1980s and 1990s by a Japanese writer named Hiroko Nishikawa. They were partially implemented by producer Osamu Sato in original LSD. The nature of these nightmares/dreams are extremely odd, and some even have outright uncovered sexual references.