John C. Lilly was an American doctor who studied ways to help people in difficult situations, especially for people with mental illness. He also was interested in exploring how we think and how our thoughts affect our lives. He wanted to understand how the brain and body interact, and how modern technology could help us in this process. He conducted experiments on dolphins and humans, and he also wrote about his ideas in his books. He taught us that the mind and body are connected and that we can use science to help better understand how they work together.