"Universal Migrator" is a musical project by the Dutch progressive metal band Ayreon, created by composer Arjen Anthony Lucassen. Released in 2000, it consists of two parts: "The Dream Sequencer" and "Flight of the Migrator." The album features a blend of rock, metal, and opera, showcasing various guest musicians. The concept of "Universal Migrator" revolves around themes of space travel and the search for a new home. The narrative follows a character who uses a machine called the Dream Sequencer to explore different realities and experiences, reflecting on humanity's quest for meaning and belonging.