Laser projection can be an powerful tool for exploring the relationship between sound and visuals in synesthesia. By projecting laser beams onto surfaces in synchronization with music or other sounds, it is possible to create a multi-sensory experience where the visual and auditory elements are connected in a way that can evoke synesthetic experiences. By using laser projection, it is possible to gain a deeper understanding of the complex interplay between sound and visuals in synesthesia and explore the many ways in which our brains can process sensory information.